买方在交付了期权费后,其取得在合约规定的到期日或到期日以前按协定价格买入或卖 出一定数量相关股票的权利，称之为（）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30047' and id < 2434164 and id<>'2434164' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30047' and id > 2434164 and id<>'2434164' order by id asc limit 5