The movement of the arms and legs is accomplished by the subdivision of the peripheral nervous system. sympathetic somatic parasympathetic spinal cord

The movement of arms and legs is performed by the Somatic subdivision.

The peripheral nervous system is classified into two categories, the autonomic nervous system and the somatic nervous system. The somatic controls the actions of arms and legs.

Somatic

answer; polycythemia is the correct answer;

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.