THE MUCH ANTICIPATED GMAT QUESTION OF THE WEEK!

During the past week, a local medical clinic tested N individuals for two infections. If 1/3 of those tested had infection A and, of those with infection A, 1/5 also had infection B, how many individuals did not have both infection A and B?

A)	N/15
B)	4N/15
C)	N/5
D)	14N/15
E)	4N/5