What describes the mechanical digestion process?
a) foods are physically broken down into smaller pieces
b) the body makes chemicals to break down food
c) large molecules are broken down into smaller molecules
d) food is moved from one part of the digestive system to another part

A) foods are physically broken down into smaller pieces!

your mouth brakes the food into small pieces and is the main part but chemical reaction also occurs,
the saliva in your mouth helps you swallow the food easily!
just imagine eating your food dry like doritos that will hurt! your saliva makes it a lot easier and painless!