What is an advantage of forced air heating?

A) it requires little energy to run.

B) it is energy efficient

C) it cleans the air

B. It's energy efficient

Explanation:

Forced air heating involves the use of air as medium of transportation of heat in an enclosed space. The heat is transmitted through duct system and distributed by vents to other parts of the space

i do believe the answer is c not sure but correct me if im wrong