Question ID:PT44 S2 Q10 Passage:Before their larvae hatch, each parental pair of Nicrophorus beetles buries the carcass of a small vertebrate nearby.  For several days after the larvae hatch, both beetles feed their voracious larvae from the carcass, which is entirely consumed within a week.  Since both parents help with feeding, larvae should benefit from both parents' presence; however, removing one parent before the hatching results in larvae that grow both larger and heavier than they otherwise would be. Stem:Which one of the following, if true, best helps to explain why removing one parent resulted in larger, heavier larvae? Correct Answer Choice:BChoice A:Two beetles can find and bury a larger carcass than can a single beetle. Choice B:Both parents use the carcass as their own food supply for as long as they stay with the larvae. Choice C:Beetle parents usually take turns feeding their larvae, so that there is always one provider available and one at rest. Choice D:After a week, the larvae are capable of finding other sources of food and feeding themselves. Choice E:Two parents can defend the carcass from attack by other insects better than a single parent can.