题目选项分析

In the last few years, a drastic spike in sea temperatures around Prudhoe Bay has caused the eggs of snow crabs to hatch earlier in the year than they had previously. As a result, baby snow crabs are more likely to be caught by deep sea fishing boats, since deep sea fishing boats are more numerous in Arctic waters during the fall season than they are during the winter season.

Which of the following pieces of information is necessary to evaluate the argument?

【选项】The month in which the boats leave, and the month in which the snow crabs eggs hatch