Please I need help now!

A student observing animals at a zoo answers the following questions.

1. How many limbs does the animal have?
2. Does the animal have gills or lungs?
3. Does the animal have a backbone?
During which task is the student most likely to use this information?

A. drawing a food chain containing each animal

B. using physical characteristics to classify each animal

C. identifying the preferred food sources of each animal

D. understanding how traits are inherited by each animal