Question: In a particular habitat, Animal X has two sources of food. One source is found in the water and the other source is found on land. If the main predator of Animal X is found only on land, what is the most likely structural adaptation that will be selected for in the population of Animal X?

  Options: 
 A. development of claws
 B. increase in leg strength
 C. increase in visual acuity
 D. development of webbed feet
Answer: D