Which relation is not a function?

(A) Month Profit
Jan. $150
Feb. $400
Mar. $430


(B) Month Profit
Jan. $150
Feb. $400
Mar. $430


(C) Month Profit
Jan. $150
Feb. $400

(D) Month Profit
Jan. $400
Feb.
Mar.

Which relation is not a function A Month Profit Jan 150 Feb 400 Mar 430 B Month Profit Jan 150 Feb 400 Mar 430 C Month Profit Jan 150 Feb 400 D Month Profit Jan class=