Answer:
The part of brain is A. hindbrain.
Step-by-step explanation:
Medulla, pons, and cerebellum combines to form Hindbrain or rhombencephalon. They all support bodily processes together. The major feature of hindbrain is cerebellum. It helps in controlling balance, coordination and some fine muscle movements like walking. It also helps to maintain equilibrium and posture. It also involved in regulating pleasure and fear senses.
Hindbrain does not initiate any movements, but it is responsible for coordinating the signals and integrate them into fine motor movements in precision and accurate timing.