Parasitic wasps laytheir eggs directly into the eggs of various host insects in exactly the rightnumbers for any suitable size of host egg. If they laid too many eggs in a host egg, the developing wasp larvaewould compete with each other to the death for nutrients and space.  If too few eggs were laid, portions of thehost egg would decay, killing the wasp larvae.

Which of the followingconclusions can properly be drawn from the information above?

(A) The size of thesmallest host egg that a wasp could theoretically parasitize can be determinedfrom the wasp's egg-laying behavior.

(B) Host insects lackany effective defenses against the form of predation practiced by parasiticwasps.

(C) Parasitic waspslearn from experience how many eggs to lay into the eggs of different hostspecies.

(D) Failure to layenough eggs would lead to the death of the developing wasp larvae more quicklythan would laying too many eggs.

(E) Parasitic waspsuse visual clues to calculate the size of a host egg.

答案A

为什么？smallest host egg是什么？