Question

Testosterone is made in the testes, where it stimulates sperm development. Additionally, testosterone is carried in the blood throughout the body, stimulating the growth of facial hair and muscles. Therefore, testosterone is a local hormone. an endocrine hormone. both a neurotransmitter and an endocrine hormone. both a local and an endocrine hormone.

Answer 1

Testosterone is definitely a endocrine hormone and it is definitely not a neurotransmitter.
It can’t be a local hormone either because it circulates in the blood.

So final answer: testosterone is an endocrine hormone.