Which statement contains the best example of understatement?

A. The smell of freshly baked cinnamon rolls from across the street was life-altering.
B. I put on my newly laundered shirt and began to strut around like a pro golfer.
C. After 10 minutes of running, sweat began to drip from my brow into my eyes.
D. When I found my car on fire, something told me this was going to be a bad day.