If \( n \) is number of necklaces which can be formed using 17 identical pearls and 2 identical ...

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If \( n \) is number of necklaces which can be formed using 17 identical pearls and 2 identical diamonds and similarly, \( m \) is number of necklaces which can be formed using 17 identical pearls and different diamonds, then
(A) \( n=9, m=18 \)
(B) \( n=m=18 \)
(C) \( n=m=9 \)
(D) None of these
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