In a division sum, the remainder is 0. As student mistook the divisor by 12 instead of 21 and obtained 42 as quotient. What is the correct quotient ?	Pick one
A) 0
B) 12
C) 13
D) 20
E) 24

Rationale: "12 * 42 = 504 504 % 21 = 24 answer : e"
Answer: E