The number of ways in which \( m+n(n \leq m+1) \) different things can be arranged in a row such...

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The number of ways in which \( m+n(n \leq m+1) \) different things can be arranged in a row such that no two of the \( n \) things may be together,
(A) \( \frac{(m+n) !}{m ! n !} \)
(B) \( \frac{m !(m+1) !}{(m+1) !} \)
(C) \( \frac{m !(m+1) !}{(m-n+1) !} \)
(D) none of these
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