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【单选题】
黄体酮的化学名称是A.
孕甾-4-烯-3，20-二酮
B.
孕甾-1，4-二烯-3，20-二酮
C.
孕甾-1-烯-3，20-二酮
D.
孕甾-4-烯-3-酮
E.
孕甾-1，4-二烯-20-二酮
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A.
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B.
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C.
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D.
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