Which of the following statements is correct? A. Selling ATM put options on the S&P 500 index is profitable on average. B. The payoff of a short position is less exposed to rapid and large stock price appreciation compared to a put option. C. An OTM call option is typically more expensive than the ITM call options on the same underlying asset. D. A long position in a stock market index with downside protection through repeated purchases of OTM put options would earn higher average returns in the long run compared to the index itself