_______ is a collection of nuclei located deep beneath the cortex, and damage to their structures can affect posture and may be associated with abnormal muscle movements.

Correct option is B

The basal ganglia are subcortical structures involved in motor control, procedural learning, and emotions. Damage to the basal ganglia can lead to movement disorders such as Parkinson’s disease, Huntington’s disease, or dystonia, affecting posture, coordination, and muscle control.
Information Booster:
The basal ganglia interact with the motor cortex and cerebellum, forming a critical network for voluntary and involuntary motor activities. They are implicated in both motor and non-motor functions, including cognition and reward processing.
· Sulcus (a): Refers to grooves on the cerebral cortex, unrelated to posture control.
· Gyrus (c): Elevated ridges on the brain's surface, not involved in motor control.