______ blocks the action of an enzyme that breaks down the signaling molecule that sustains erection.

A) Epinephrine
B) Lipitor
C) Viagra
D) Elequis
E) Ibuprofen

Signaling Molecule

A chemical that is involved in transmitting information between or within cells, often triggering physiological changes.

Erection

The physiological process by which certain tissues in the body, such as the penis or clitoris, become enlarged and firm, typically as a result of sexual arousal or stimulation.

Viagra

A medication commonly used to treat erectile dysfunction (ED) by increasing blood flow to the penis.