For what and only what values of \( \alpha \) lying between 0 and \( \pi \) is the inequality \(...
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0For what and only what values of \( \alpha \) lying between 0 and \( \pi \) is the inequality \( \sin \alpha \cos ^{3} \alpha\sin ^{3} \alpha \cos \alpha \) valid?
(A) \( \alpha \in(0, \pi / 4) \)
(B) \( \alpha \in(\pi / 4, \pi / 2) \)
(C) \( \alpha \in(0, \pi / 2) \)
(D) none of these
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