In a group of 25 students of management, 12 have taken marketing specialization, 9 have taken operations and 8 have not taken any of these. How many of the students have taken marketing and operations?

In a group of 25 students of management, 12 have taken marketing speci

1.	In a group of 25 students of management, 12 have taken marketing specialization, 9 have taken operations and 8 have not taken any of these. How many of the students have taken marketing and operations?
A.	7
B.	5
C.	4
D.	12
Answer» E.