Currency options sold through an options exchange:

A.contain a commitment to the owner, and are standardized.

B.contain a commitment to the owner, and can be tailored to the desire of the owner.

C.contain a right but not a commitment to the owner, and can be tailored to the desire of the owner.

D.contain a right but not a commitment to the owner, and are standardized.

正确答案：contain a right but not a commitment to the owner, and are standardized.