If the product of the integers w, x, y and z is 68, and if 0< w < x < y < z, what is the value of w + z?	Choose the correct option
A) 10 B) 5 C) 16 D) 18 E) 21

Rationale: 24 = 1 * 2 * 3 * 4 so w = 1 , x = 2 , y = 3 , z = 4 w + z = 1 + 4 = 5 answer - b
Answer: B