A population of frogs is split between two ponds during a long-term drought. Pond A has several predators that can catch frogs. Pond Blacks predators and has plenty of food.
Which adaptation is most likely to increase over time in pond A frog population?
The ability to croak more loudly to attract mates

B.
The ability to swim faster

C.
A larger body size

D.
The preference for worms as a food source instead of insects