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α = sin 36° is a root of which of the following equation

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α = sin 36° is a root of which of the following equation

(A) 10x4 - 10x2 -5 = 0 

(B) 16x4 + 20x2 -5 = 0 

(C) 16x4 - 20x2 + 5 = 0 

(D) 16x4 - 10x2 + 5 = 0 

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(C) 16x4 - 20x2 + 5 = 0 

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