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

<passage>:
Open Access: Economics Many publishers who oppose OA concede that OA is better for research and researchers than toll access. They merely object that we can’t pay for it. But we can pay for it. OA journals pay their bills the way broadcast television and radio stations do—not through advertising or pledge drives, but through a simple generalization on advertising and pledge drives. Those with an interest in disseminating the content pay the production costs upfront so that access can be free of charge for everyone with the right equipment. Elsewhere I’ve called this the “some pay for all” model. Some OA journals have a subsidy from a university, library, foundation, society, museum, or government agency. Other OA journals charge a publication fee on accepted articles, to be paid by the author or the author’s sponsor (employer or funder). The party paying the subsidy or fee covers the journal’s expenses and readers pay nothing. OA journals that charge publication fees tend to waive them in cases of economic hardship, and journals with institutional subsidies tend not to charge publication fees. OA journals can diversify their funding and get by on lower subsidies, or lower fees, if they also have revenue from print editions, advertising, priced add-ons, or auxiliary services. Some institutions and consortia arrange fee discounts, or purchase annual memberships that include fee waivers or discounts for all affiliated researchers. Models that work well in some fields and nations may not work as well in others. No one claims that one size fits all. There’s still room for creativity in finding ways to pay the costs of a peer-reviewed OA journal, and many smart and motivated people are exploring different possibilities. Journals announce new variations almost every week, and we’re far from exhausting our cleverness and imagination. Green OA may suffer from invisibility, but gold OA does not. On the contrary, researchers who don’t know about OA repositories still understand that there are OA journals. Sometimes the visibility gap is so large that researchers, journalists, and policy-makers conclude that all OA is gold OA (see section 3.1 on green and gold OA). As a result, most researchers who think about the benefits of OA think about the benefits of gold OA. Here, at least, the news is good. The most comprehensive survey to date shows that an overwhelming 89 percent of researchers from all fields believe that OA journals are beneficial to their fields. Apart from the myth that all OA is gold OA, the most common myth about gold OA is that all OA journals charge “author fees” or use an “author-pays” business model. There are three mistakes here. The first is to assume that there is only one business model for OA journals, when there are many. The second is to assume that charging an upfront fee means authors are the ones expected to pay it. The third is to assume that all or even most OA journals charge upfront fees. In fact, most OA journals (70 percent) charge no upfront or author-side fees at all. By contrast, most toll-access journals (75 percent) do charge author-side fees. Moreover, even within the minority of fee-based OA journals, only 12 percent of those authors end up paying the fees out of pocket. Almost 90 percent of the time, the fees at fee-based journals are waived or paid by sponsors on behalf of authors. Terminology Finally, this false belief undermines calculations about who would bear the financial brunt if we made a general transition from toll-access journals to OA journals. A handful of studies have calculated that after a general conversion of peer-reviewed journals to OA, high-output universities would pay more in author-side fees than they pay now in subscriptions. These calculations make at least two assumptions unjustified by present facts or trends: that all OA journals would charge fees, and that all fees would be paid by universities. There are two kinds of OA journals, full and hybrid. Full OA journals provide OA to all their research articles. Hybrid OA journals provide OA to some and toll-access to others, when the choice is the author’s rather than the editor’s. Most hybrid OA journals charge a publication fee for the OA option. Authors who can find the money get immediate OA, and those who can’t or prefer not to, get toll access. (Many hybrid OA journals provide OA to all their articles after some time period, such as a year.) Some hybrid OA journals promise to reduce subscription prices in proportion to author uptake of the OA option, that is, to charge subscribers only for the toll-access articles. But most hybrid journal publishers don’t make this promise and “double dip” by charging subscription fees and publication fees for the same OA articles. Hybrid OA is very low-risk for publishers. If the OA option has low uptake, the publisher loses nothing and still has subscription revenue. If it has high uptake, the publisher has subscription revenue for the conventional articles, publication fees for the OA articles, and sometimes both at once for the OA articles. Hence, the model has spread far and fast. The Professional/Scholarly Publishing division of the Association of American Publishers reported in 2011 that 74 percent of surveyed journals offering some form of OA in 2009 offered hybrid OA. At the same time, SHERPA listed more than 90 publishers offering hybrid OA options, including all of the largest publishers. Despite its spread, hybrid OA journals do little or nothing to help researchers, libraries, or publishers. The average rate of uptake for the OA option at hybrid journals is just 2 percent. The chief virtue of hybrid OA journals is that they give publishers some firsthand experience with the economics and logistics of OA publishing. But the economics are artificial, since hybrid OA publishers have no incentive to increase author uptake and make the model succeed. The publishers always have subscriptions to fall back on. Moreover, an overwhelming majority of full-OA journals charge no publication fees and the overwhelming majority of hybrid-OA journals never gain firsthand experience with no-fee business models. There are reasons to think that OA journals cost less to produce than toll-access journals of the same quality. OA journals dispense with subscription management (soliciting, negotiating, tracking, renewing subscribers), dispense with digital rights management (authenticating users, distinguishing authorized from unauthorized, blocking access to unauthorized), eliminate legal fees for licensing (drafting, negotiating, monitoring, and enforcing restrictive licenses), and reduce or eliminate marketing. In their place they add back little more than the cost of collecting publication fees or institutional subsidies. Several studies and OA publishers have testified to these lower costs. We shouldn’t count the savings from dropping print, since most toll-access journals in the sciences have already dropped their print editions and those in the humanities are moving in the same direction. We should be suspicious when large, venerable, conventional publishers say that in their experience the economics of OA publishing don’t work. Print-era publishers retooling for digital, and toll-access publishers retooling for OA, will inevitably realize smaller savings from OA than lean, mean OA start-ups without legacy equipment, personnel, or overhead from the age of print and subscriptions.

<question>:
Overall researchers seem to believe

<options>:
A OA is going to be a detriment to them.
B OA will have no effect on them at all.
C feel that there will be long-reaching benefits for their field because of OA.
D don't care about OA one way or the other.

<answer>:

C