请教GWD9-Q14

答案是C，可是没看出来它和段落在逻辑上的关系啊~~请NN指教~~

GWD-9-Q14:

The Eurasian ruffe, a fish species inadvertently introduced into North America’s Great Lakes in recent years, feeds on the eggs of lake whitefish, a native species, thus threatening the lakes’ natural ecosystem. To help track the ruffe’s spread, government agencies have produced wallet-sized cards about the ruffe. The cards contain pictures of the ruffe and explain the danger they pose; the cards also request anglers to report any ruffe they catch.

Which of the following, if true, would provide most support for the prediction that the agencies’ action will have its intended effect?

A.    The ruffe has spiny fins that make it unattractive as prey.

B.    Ruffe generally feed at night, but most recreational fishing on the Great Lakes is done during daytime hours.

C.    Most people who fish recreationally on the Great Lakes are interested in the preservation of the lake whitefish because it is a highly prized game fish.

D.    The ruffe is one of several nonnative species in the Great Lakes whose existence threatens the survival of lake whitefish populations there.

E.     The bait that most people use when fishing for whitefish on the Great Lakes is not attractive to ruffe.

请NN们指教，非常感谢！！

选C

外来鱼吃本土鱼的卵，agency要保护本土鱼，想出来一个办法：把那个坏的外来鱼的图案给来这里垂钓的人看

要是这个办法effect，那就要证明这个办法真的可以保护本土鱼

A：外来鱼因为有那个什么东东，所以不容易被抓（无关）

B：外来鱼晚上活动，可是垂钓在白天进行（没有作用）

C：垂钓的人愿意保护本地鱼因为……（因为什么不重要，只要愿意保护就行）

D：废话，重复题目中说的东西

E：垂钓的鱼饵只吸引本地鱼，外地鱼不吃（weakened，不仅不保护，还破坏呢）