What Does the Term Autocrine Refer to in Terms of Location

What does the term autocrine refer to in terms of location of target tissues?

A) Chemicals that cause a response outside of the body in another person
B) Hormones that travel through the blood to get to their target tissue
C) The secretion of a hormone by the cells of the same tissue type that it targets
D) Hormones that work on neighboring cells without having to go through blood to get to target tissue.