选择题：9.当预计标的股票市场价格将发生剧烈变动，但无法判断是上升还是下降时，则最适合的投资组合是（

题目内容：

9.当预计标的股票市场价格将发生剧烈变动，但无法判断是上升还是下降时，则最适合的投资组合是（）。
A.购进看跌期权与购进股票的组合 B.购进看涨期权与购进股票的组合
C.售出看涨期权与购进股票的组合 D.购进看跌期权与购进看涨期权的组合

参考答案：

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