what is option simle?

what is option simle? What is call option? what is the meaning of "call option " in chinese? What is the net cost today of the cheapest option?(Enter jus option Driver components mis-match.Exit is the only option this option is not available in you country and 英语翻译Another PC-compatible operating system option is linux,a Driver components mis-match Exit is the only option 英语翻译Application Outcome This option is available to you only option是什么意思 this option is pnly available in the full version of cameraf