og11 diagnostic test 25

25. Tiger beetles are such fast runners that they can capture virtualy any nonflying insect.  However, when running toward an insect, a tiger beetle will intermittently stop and then, a moment later, resume its attack.  Perhaps the beetles cannot maintain their pace and must pause for moment's rest; but an alternative hypothesis is that while running, tiger beetles are unable to adequately process the resulting rapidly changing visual information and so quickly go blind and stop.

which of the following, if discovered in experiments using artificially moved insects, would support one of the two hypotheses and undermine the other?

A. When a prey insect is moved directly toward a beetle that has been chasing it, the beetle immidiately stops and runs away without its usual intermittent stopping.
B. In pursuing a swerving insect, a beetle alters its course while running and its pauses become more frequent as the chase progresses.
C. In pursuing a moving insect, a beetle usually responds immediately to changes in the insect's direction, and it pauses equally frequently whether the chase is up or down an incline.
D. If, when a beele pauses, it has not gained on the insect it is pursuing, the beetle generally ends its pursuit.
E. The faster a beetle pursues and insect fleeing directly away from it, the more frequently the beetle stops.

The answer is B
OG says: What point would strengthen one of the two hypotheses and weaken the other?  Consider the information provided in each answer choice, remembering that information that supports one hypothesis must necessarily detract from the other.  Any information that is not about pursuit or theat affects the two hypotheses equally may be dismissed from consideration.  If the frequency of stopping increases when the beetle follows a swerving insect and must constantly change its course, then the second hypothesis is strengthened; the beetle's pauses increase as the variety of visual information that it needs to deal with increases.

想请教下各位nn，B 为啥对，而C为啥错呢？

万分感谢～～

再顶~~同问！