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Let f be a function defined on the set of all positive integers such that f (xy) = f (x) + f (y) for all positive integers x, y.

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Let f be a function defined on the set of all positive integers such that f (xy) = f (x) + f (y) for all positive integers x, y. If f (12) = 24 and f (8) = 15, the value of f (48) is 

(A) 31 

(B) 32 

(C) 33 

(D) 34

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Correct Option :- (D) 34

Explanation :-

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