Read the following passage and questions, then choose the right answer from options, the answer should be one of A, B, C, D.

<passage>:
The strongest OA policies use words like “must” or “shall” and require or seem to require OA. They’re commonly called OA “mandates.” But all three varieties of university “mandate” above show why the term is misleading. Loophole mandates don’t require OA without qualification: when publishers dissent, articles are either not deposited in the repository or not made OA. Deposit mandates don’t require OA without qualification: when publishers dissent, articles are deposited in a repository but are not made OA. Rights-retention mandates with waiver options don’t require OA without qualification: authors may obtain waivers and sometimes do. I haven’t seen a university OA “mandate” anywhere without at least one of these three kinds of flexibility. One kind of policy, better than nothing, requests or encourages OA. A stronger kind of policy requires OA or makes it the default for new work. These stronger policies are usually called OA Second, as I’ve frequently argued, successful policies are implemented through expectations, education, incentives, and assistance, not coercion. Third, even the strongest policies—even the no-loophole, no-deference, no-waiver policies at the Wellcome Trust and NIH—make OA a condition on a voluntary contract. No policy anywhere pretends to impose an unconditional OA requirement, and it’s hard to imagine how any policy could even try. (“You must make your work OA even if you don’t work for us or use our funds”?) By contrast, we do have a good word for policies that use mandatory language for those who agree to be bound. We call them “contracts.” While “contract” is short, accurate, and unfrightening, it puts the accent on the author’s consent to be bound. That’s often illuminating, but just as often we want to put the accent on the content’s destiny to become OA. For that purpose, “mandate” has become the term of art, for better or worse. I use “mandate” with reluctance because it can frighten some of the people I’m trying to persuade and can give rise to misunderstandings about the policies behind the label. When we have time and space for longer phrases, we can talk about “putting an OA condition” on research grants, in the case of NIH-style policies, or “shifting the default to OA” for faculty research, in the case of Harvard-style policies. These longer expressions are more accurate and less frightening. However, sometimes we need a shorthand term, and we need a term that draws an appropriately sharp contrast with policies that merely request or encourage OA. Fortunately, this is well understood. There are no gold OA mandates anywhere Finally, the fact that faculty vote unanimously for strong OA policies is a good reason to keep looking for a better word than “mandate.” At least it’s a good reason to look past the colloquial implications of the term to the policies themselves and the players who drafted and adopted them. Since 2008, most OA “mandates” at universities have been self-imposed by faculty. Some kinds of strong OA policy that are politically unattainable or unwise today may become attainable and wise in the future. Here are three examples. Deposit mandates generally depend on publisher permission for OA, just like loophole mandates. The difference is that they require deposit even when they can’t obtain permission for OA. These require deposit in an OA repository as soon as the article is accepted for publication, just like deposit mandates. But they add a method to secure permission for making the deposit OA. There’s more than one way to secure that permission. At the Wellcome Trust and NIH, which pioneered this approach for funding agencies, when grantees publish articles based on their funded research they must retain the nonexclusive right to authorize OA through a repository. At Harvard, which pioneered this approach for universities, faculty members vote to give the university a standing nonexclusive right (among other nonexclusive rights) to make their future work OA through the institutional repository. When faculty publish articles after that, the university already has the needed permission, and faculty needn’t take any special steps to retain rights or negotiate with publishers. Nor need they wait for the publisher’s embargo to run. Harvard-style policies also give faculty a waiver option, allowing them to opt out of the grant of permission to the university, though not out of the deposit requirement. When faculty members obtain waivers for given works, then Harvard-style mandates operate like deposit mandates and the works remain dark deposits until the institution has permission to make them OA. Many OA policies are crossbreeds rather than pure types, but all the policies I’ve seen are variations on these four themes. First note that none of the three “mandates” absolutely requires OA. Loophole mandates allow some work to escape through the loophole. Deposit mandates allow some deposited work to remain dark (non-OA), by following publisher preferences. Rights-retention mandates with waiver options allow some work to remain dark, by following author preferences. We could say that rights-retention policies require OA except when authors opt out, or that they simply shift the default to OA. Those are two ways of saying the same thing because, either way, faculty remain free to decide for or against OA for each of their publications. Preserving this freedom and making it conspicuous help muster faculty support, indeed, unanimous faculty votes. Because shifting the default is enough to change behavior on a large scale, waiver options don’t significantly reduce the volume of OA. At Harvard the waiver rate is less than 5 percent, and at MIT it’s less than 2 percent. Loophole policies and rights-retention policies both offer opt-outs. But loophole policies give the opt-out to publishers and rights-retention policies give it to authors. The difference is significant because many more authors than publishers want OA for research articles. Many institutions adopt loophole policies because they believe a blanket exemption for dissenting publishers is the only way to avoid copyright problems. But that is not true. Deposit policies don’t make works OA until publishers allow OA, and rights-retention policies close the loophole and obtain permission directly from authors at a time when authors are the copyright holders. OA policies from funding agencies are very much like OA policies from universities. They can encourage green and gold OA, or they can require green OA. If they require green OA, they can do so in one of the three ways above. If there’s a difference, it’s that when funders adopt a rights-retention mandate, they typically don’t offer waiver options. On the contrary, the Wellcome Trust and NIH require their grantees to make their work OA through a certain OA repository on a certain timetable and to retain the right to authorize that OA. If a given publisher will not allow grantees to comply with their prior funding agreement, then grantees must look for another publisher. There are two reasons why these strong funder policies don’t infringe faculty freedom to submit work to their journals of their choice. First, researchers needn’t seek funds from these funders. When they choose to do so, then they agree to the OA provisions, just as they agree to the other terms and conditions of the grant. The OA “mandate” is a condition on a voluntary contract, not an unconditional requirement. It’s a reasonable condition as well, since public funders, like the NIH, disburse public money in the public interest, and private funders, like the Wellcome Trust, disburse charitable money for charitable purposes. To my knowledge, no researchers have refused to apply for Wellcome or NIH funds because of the OA condition, even when they plan to publish in OA-averse journals. The OA condition benefits authors and has not been a deal-breaker.

<question>:
In which situations does truly unconditional OA policy apply?

<options>:
A When publishing work in a journal
B When working for a university
C There are no situations where unconditional OA applies
D When working in the field of Physics

<answer>:

C