On dividing 22 by a number, the quotient is 7 and the remainder is 1. Find the divisor. Choose the correct choice from the following answers
A) 1
B) 2
C) 3
D) 6
E) 7

Rationale: "d = ( d - r ) / q = ( 22 - 1 ) / 7 = 21 / 7 = 3 c"
Answer: C