GIVING BRAINLIEST IF CORRECT!!!
How is food moved through the esophagus and small intestine?

(ANSWER IF 100 PERCENT SURE THIS IS FOR A TEST)

A. The process of peristalsis which is small muscle contractions squeeze food down the tube.

B. Peristalsis is when long muscles the size of the organ open the tube up for food to slide through.

C. The food gets pushed through, as you eat more it pushes the other food along.

D. Food is moved by the pull of gravity through the tubes in the body.

I'm pretty sure its either A or B but I don't know which one.