Fact 1: Arteries generally carry oxygen-rich blood.

Fact 2: Oxygen-rich blood is critical for erectile health.

Given the two facts above, answer the question "What are critical for erectile health?" with the following options: 
- fur and fat
 - Energy.
 - Energy
 - sweating
 - exercise
 - arteries
 - strength
 - a cuticle


 

      arteries   