even when there are additional advantages from fishing over common access fisheries , they are not used as much as private fisheries.
(A) There are more common-access fisheries than there are Private ones. - as given in the premise, there are more common access fisheries but doesn't help explain why are not being used as much
(B) It is more difficult to measure the cost of over fishing that is attributable to any particular fisherman in common-access fisheries than in private ones. - great advantage to who want to use common access fisheries, but why are they still not using it as much
(C) If one fisherman were to over fish a common-access fishery even slightly, the other fishermen are more likely to do so even more, with the result that the ultimate costs to each fisherman outweigh the benefits.
this one says , if one does it , others do it, then additionally others do it , resulting in less benefits because of over use and additional cost. good reason for not using common access fisheries. keep the answer.
(D) Both the costs and benefits of over fishing fall to the individual user in private fisheries.
more about private fisheries, but does not help explain the fact about common access fisheries
(E) An individual fisherman would obtain a competitive advantage if he or she were able to catch more fish than other fishermen by over fishing common-access fisheries.
there is an advantage of catching more fish and benefits, even more curious now why don't they use common access area..
C, it is