Answer:
The correct answer would be cerebellum.
The cerebellum is the most important structure of the hindbrain which is associated with functions like coordinating voluntary movements such as balance, posture, coordination, and speech.
It is the main center where skill memory is processed after which information is relayed to basal ganglia.
It also stores automatically learned memories such as playing an instrument (such as a violin), riding a bike, tying shoelaces, et cetera.