Which of the following statements is correct? A. Underlying assets of American options are U.S. companies B. European call option is the right to buy a specified asset at a specified price on the maturity date. OC. You have sold (i.e. written) a call option with the exercise price of $70. The underlying stock price is $100 on the maturity date. You make a profit of $30 from the transaction. OD. Assume that you own a put option on a stock, and the option matures today. The current stock price is $70, and the exercise price is $60. Then, you exercise the option