On dividing 144 by a number, the quotient is 13 and the remainder is 1. Find the divisor.  Choose the correct choice from the following answers
A) 11 B) 14 C) 16 D) 18 E) 22

Rationale: "d = ( d - r ) / q = ( 144 - 1 ) / 13 = 143 / 13 = 11 a )"
Answer: A