Q: What is the smallest main part of the brain?


Read this paragraph and choose the correct option from the provided answers:

The brain stem is the smallest of the three main parts of the brain. It lies directly under the cerebrum. The brain stem controls basic body functions, such as breathing, heartbeat, and digestion. The brain stem also carries information back and forth between the cerebrum and spinal cord.

 Choices:

- the cortex

- the claw

- the cerebellum

- the stem


A:
the stem