An American Call Option Is

An American call option is:

A) An obligation to purchase a security at a predetermined price on a predetermined date.
B) The right, but not the obligation, to sell a security at a predetermined strike price.
C) The obligation, at the option of the seller, to purchase a financial asset at a predetermined price on or before a specified date.
D) A right, effective when the option is exercised by the seller, to purchase a stated quantity of a financial asset by or before a stated date at a price determined today.
E) The right, but not the obligation, to purchase a security at a predetermined price on or before a predetermined date.