If two positive integers p and q can be expressed as p = ab2 and q = a3b; where a, b being prime numbers, them LCM (p, q) is equal to
A. ab
B. a2b2
C. a3b2
D. a3b3
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C. a3b2
Let p = ab2 = a × b × b
And q = a3b = a × a × a × b
⇒ LCM of p and q = LCM (ab2, a3b) = a × b × b × a × a = a3b2
[Since, LCM is the product of the greatest power of each prime factor involved in the number]