请大牛帮忙看看这道OG中的题，3Q！

verbal review 中的cs第77题

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

Whicn of the following conclusions can properly be drawn from the information above?

答案是

The size of the smallest host egg that a wasp could theoretically parasitize can be determined from the wasp's egg-laying behavior.

不太懂为什么用smallest host egg?还有，我认为是与产卵的经验有关，所以选C，不知大家都怎么想？

谢谢！