There are 193 items that are members of set U. Of these items, 47 are members of set B, 59 are not members of either of set A or set B, and 23 are members of both sets A and B. How many of the members of set U are members of set A ?	Choose the correct choice from the following answers:	A) 72	B) 85	C) 94	D) 106	E) 108

Rationale: "you had the answer almost right . the x = 83 refers to only set a . however what ' s being asked is how many members are part of set a . this will include : 1 . only set a 2 . set a and set b so the answer is set a = 85 + set ab = 83 + 23 = 106 d"
Answer: D