Which of the Following Statements Is CORRECT

Which of the following statements is CORRECT?

A) Call options generally sell at a price less than their exercise value.
B) If a stock becomes riskier (more volatile) ,call options on the stock are likely to decline in value.
C) Call options generally sell at prices above their exercise value,but for an in-the-money option,the greater the exercise value in relation to the strike price,the lower the premium on the option is likely to be.
D) Because of the put-call parity relationship,under equilibrium conditions a put option on a stock must sell at exactly the same price as a call option on the stock.
E) If the underlying stock does not pay a dividend,it makes good economic sense to exercise a call option as soon as the stock's price exceeds the strike price by about 10%,because this permits the option holder to lock in an immediate profit.