Mark the correct alternative in each of the following questions. If...

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Mark the correct alternative in each of the following questions.
If \( a=2^{3} \times 3, b=2 \times 3 \times 5, c=3^{n} \times 5 \) and \( \operatorname{LCM}(a, b, c)=2^{3} \times 3^{2} \times 5 \), then \( n= \)
(a) 1
(b) 2
(c) 3
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