Answer: B

Forex options can be divided into different types according to different standards: ① According to the trading purpose of the option holder, they can be divided into buy options (call options) and Selling options (put options); ② According to the original financial products that generate option contracts, they can be divided into spot options (also called currency options) and foreign exchange futures options; ③ According to the time when the option holder can exercise the delivery right, Divided into European options and American options.