If \( n \) is odd and \( { }^{n} C_{0}{ }^{n} C_{1}{ }^{n} C_{2}\ld... VIDEO
If \( n \) is odd and \( { }^{n} C_{0}{ }^{n} C_{1}{ }^{n} C_{2}\ldots{ }^{n} C_{r} \), then maximum possible value of \( r \) is
(a) \( \frac{1}{2}(n+1) \)
(b) \( \frac{1}{2}(n-1) \)
(c) \( n \)
(d) \( \frac{1}{3}(n+1) \)
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