Discuss which of the following statements is true. 01. An American call option is more expensive than a European call option because of the time value of money. 011. An American call option is cheaper than a European call option because we lose the insurance value of the call if we exercise early. O III. An American call option is more expensive than an American put option because call options give the right to buy the stock and not to sell it. O IV. An American put option is more expensive than a European put option because of the time value of money