On dividinng 109 by a number, the quotient is 9 and the remainder is 1. Find the divisor.
Select:	A) 12	B) 14	C) 15	D) 16	E) 17

Rationale: d = ( d - r ) / q = ( 109 - 1 ) / 9 = 108 / 9 = 18 a
Answer: A