Fact 1: Testosterone stimulates the reproductive organs to develop into male organs.

Fact 2: Main androgen is testosterone.

Given the two facts above, answer the question "what does androgen stimulate?" with the following options: 
- Veins and arteries.
 - heart
 - reproductive organs
 - allow growth
 - brain
 - Quality of life
 - heat produced
 - feet


 

   reproductive organs      