In a sports club with 55 members, 23 play badminton and 29 play tennis and 7 do not play either. How many members play both badminton and tennis? Choose the correct choice from the following:
A) 3
B) 5
C) 4
D) 7
E) 8

Rationale: "23 + 29 = 52 but where as total number is 55 - 7 = 48 therefore answer is 52 - 48 = 4 hence answer is c"
Answer: C