If "#" denotes "multiplied by", "@" denotes "subtracted from", "*" denotes "added to" and "%" denotes "divided by", then which of the following equation must be true?

A

14 % 2 * 3 # 8 = 31

B

3 # 9 @ 4 # 6 = 4

C

5 # 6 % 3 @ 4 = 8

D

4 % 2 # 6 * 7 = 18