During an EVS class, a student asks the teacher, "Why do birds migrate?" What should the teacher do?

A. Teacher should tell the student that migration is a complex process and it is not necessary for them to know the details at their current grade level.

B. Teacher should explain to the student that birds migrate to find better food sources and suitable breeding grounds.

C. Teacher should ask the student to conduct research on bird migration and present their findings to the class.