If m is a positive integer and m^2 is divisible by 36, then the largest positive integer that must divide m is?	Choose the correct choice from the following options:
A) 3 B) 6 C) 8 D) 12 E) 16

Rationale: "m ^ 2 is divisible by 48 so m ^ 2 must be multiple of 48 . if the value of m is multiples of 12 then it will satisfy the condition . if we if m is 12 or 24 or 36 then it ans is d but if m = 48 then answer should be 16 . is the question right ? or am i missing some thing ? d"
Answer: D