Sue Just Sold 1,500 American Calls. This Transaction

Sue just sold 1,500 American calls. This transaction:

A) Gives Sue the right to sell 1,500 shares at any time prior to the option expiration.
B) Grants Sue the right to buy 150,000 shares at any time prior to the option expiration.
C) Obligates Sue to buy 15,000 shares if the option is exercised prior to expiration.
D) Provides Sue the right to sell 150,000 shares of stock on the expiration date if she so chooses.
E) Obligates Sue to sell 150,000 shares if the option is exercised by the expiration date.