You are presented with the quiz "Why do ducks move faster through water?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "webbed feet are used for moving faster through water by aquatic animals" and "all ducks have webbed feet". So, what's the best answer to the question?

Select from:
A). Due to their coloring
B). Due to their feet
C). To keep their body heat.
D). Due to their diet
E). animals with backbones
F). Males and females
G). it keeps an organism warm
H). Due to their quacks
The answer is:
B).