Answer:
A. pons
Step-by-step explanation:
The pons is the largest part of the brainstem above the medulla oblongata and below the midbrain, in front of the cerebellum.
It controls involuntary actions such as those involved in sleep, respiration, and appetite.
It is also responsible for many of the sensory and motor functions of the head and face. For example, hearing, taste, facial sensations (such as touch and pain), eye movement, facial expressions, chewing, and swallowing.