Answer the following question given this paragraph: 

The digestive system has three main functions: digestion of food, absorption of nutrients, and elimination of solid food waste. Digestion is the process of breaking down food into components the body can absorb. It consists of two types of processes: mechanical digestion and chemical digestion.


Q: What is the process of breaking down food into components the body can absorb called?

 Choices:

- absorption

- filtration

- excretion

- digestion

A:
digestion
