Which of the Following Statements Best Describes Options

Which of the following statements best describes options?

A) An option's value is determined by its exercise value, which is the market price of the stock less its striking price. Thus, an option can't sell for more than its exercise value.
B) As the stock's price rises, the time value portion of an option on a stock increases because the difference between the price of the stock and the fixed strike price increases.
C) The market value of an option depends in part on the option's time to maturity and also on the variability of the underlying stock's price.
D) The potential loss on an option decreases as the option sells at higher and higher prices because the profit margin gets bigger.