Which is the best example of imagery in this passage?

17- Thompson sat down and buried his face in his red silk handkerchief, and began to slowly sway and rock his body like one who is doing his best to endure the almost unendurable. By this time the fragrance--if you may call it fragrance--was just about suffocating, as near as you can come at it.

A. Thompson sat down
B. if you can call it fragrance--- was just about suffocating
C. as near as you can come to it