问题详情

Ifyouareaputseller,youhaveto______inordertooffsettheoriginaldeal.
A．buyaputatalowerstrikepriceandearlierexpiration
B．sellaputwiththesamestrikepriceandexpiration
C．buyaputwiththesamestrikepriceandexpiration
D．sellaputatahigherstrikepriceandearlierexpiration

请帮忙给出正确答案和分析，谢谢！