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10.Acalloptiongivestheholdertherighttoaninstrumentwhereasaputoptiongivestheholdertherightto__.

题型：单选题

选项

A. exercise; confiscate.

B. sell; purchase.

C. purchase; sell.

正确答案：C

10.Acalloptiongivestheholdertherightto______aninstrumentwhereasaputoptiongivestheholdertherightto________.