In a Hypothetical Environment, Fish Called Pike-Cichlids Are Visual Predators

Multiple Choice

In a hypothetical environment, fish called pike-cichlids are visual predators of algae-eating fish (in other words, they locate their prey by sight) . If a population of algae-eaters experiences predation pressure from pike-cichlids, which of the following is least likely to be observed in the algae-eater population over the course of many generations?

A) selection for drab colouration of the algae-eaters
B) selection for nocturnal algae-eaters (active only at night)
C) selection for larger female algae-eaters, bearing broods composed of more, and larger, young
D) selection for algae-eaters that become sexually mature at smaller overall body sizes
E) selection for algae-eaters that are faster swimmers