Let A = {7, 8, 9, 10, 11, 12} and B = {7, 10, 14, 15}. What is the num – McqOptions

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1.	Let A = {7, 8, 9, 10, 11, 12} and B = {7, 10, 14, 15}. What is the number of elements in (A – B) and (B – A) respectively?
A.	2 and 4
B.	4 and 2
C.	2 and 2
D.	4 and 4
Answer» C. 2 and 2

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