Bdelloid Rotifers May Have Existed for Tens of Millions of Years

Bdelloid rotifers may have existed for tens of millions of years without regular sexual reproduction, though long-term asexual reproduction typically leads to extinction.Bdelloid rotifers acquire gene fragments from the environment during the desiccation-rehydration cycle.Which statement best explains their survival?

A) Acquiring gene fragments allows rotifers to switch to a sexual mode of reproduction.
B) Acquiring gene fragments allows for genetic recombination.
C) Some mutations have been favorable, allowing compensation for deleterious mutations.
D) Acquiring gene fragments allows rotifers to increase gamete production.
E) Gene fragments encase existing DNA, protecting it from damage.