Mark the correct alternative in each of the following: If \( S_{n} \) denotes the sum of first \...
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0Mark the correct alternative in each of the following:
If \( S_{n} \) denotes the sum of first \( n \) terms of an A.P. \( a_{n} \) such that \( \frac{S_{m}}{S_{n}}=\frac{m^{2}}{n^{2}} \), then \( \frac{a_{m}}{a_{n}}= \)
(A) \( \frac{2 m+1}{2 n+1} \)
(B) \( \frac{2 m-1}{2 n-1} \)
(C) \( \frac{m-1}{n-1} \)
(D) \( \frac{m+1}{n+1} \)
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