Task: Question Answering
Input (English): 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?  
 (A) development of claws (B) increase in leg strength (C) increase in visual acuity (D) development of webbed feet
Output (English): D