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

<passage>:
Green OA mandates don’t assure OA to the entire research output of a university or funding agency, for the same reason that they don’t require OA without qualification. But implementing them provides OA to a much larger percentage of the research output than was already headed toward OA journals or OA repositories, and does so while leaving authors free to submit their work to the journals of their choice. I’ve only tried to give a rough taxonomy of OA policies and their supporting arguments. For detailed recommendations on OA policy provisions, and specific arguments for them, see my 2009 analysis of policy options for funding agencies and universities. Authors control the volume and growth of OA. They decide whether to submit their work to OA journals (gold OA), whether to deposit their work in OA repositories (green OA), and how to use their copyrights. But scholarly authors are still largely unfamiliar with their OA options. It’s pointless to appeal to them as a bloc because they don’t act as a bloc. It’s not hard to persuade or even excite them once we catch their attention, but because they are so anarchical, overworked, and preoccupied, it’s hard to catch their attention. I’ve also focused here on OA policies for peer-reviewed research articles. Many universities have adopted OA mandates for theses and dissertations, and many funder OA policies also cover datasets. A growing number of universities supplement OA mandates for articles with a sensible and effective policy to assure compliance: When faculty come up for promotion or tenure, the review committee will only consider journal articles on deposit in the institutional repository. 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. That’s the main reason why no university policies require OA without qualification. There are a few more. First, as Harvard’s Stuart Shieber frequently argues, even the strongest university policies can’t make tenured faculty comply. 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”?) Today, more than fifty funding agencies and more than one hundred universities have adopted strong OA policies. Each one depends on the primacy of author decisions. Fortunately, funding agencies and universities are discovering their own interests in fostering OA. These nonprofit institutions make it their mission to advance research and to make that research as useful and widely available as possible. Their money frees researchers to do their work and avoid the need to tie their income to the popularity of their ideas. Above all, these institutions are in an unparalleled position to influence author decisions. 4.1 OA Policies at Funding Agencies and Universities Encouragement policies can target green and gold OA equally. By contrast, mandates only make sense for green OA, at least today when OA journals constitute only about one-quarter of peer-reviewed journals. A gold OA mandate would put most peer-reviewed journals off-limits and seriously limit faculty freedom to submit their work to the journals of their choice. This problem doesn’t arise for green OA mandates. Finally, a common misunderstanding deliberately promulgated by some publishers is that OA must be “mandated” because faculty don’t want it. This position gets understandable but regrettable mileage from the word “mandate.” It also overlooks decisive counter-evidence that we’ve had in hand since 2004. Alma Swan’s empirical studies of researcher attitudes show that an overwhelming majority of researchers would “willingly” comply with a mandatory OA policy from their funder or employer. 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. 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. 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.

<question>:
Why is it difficult to appeal to academic writers about OA policies?

<options>:
A They are hard to capture the attention of
B All of the other answers are correct
C They work too hard to be concerned with publishing intricacies
D They are not a homogenous group

<answer>:

B