Which of the following statements are correct? i. Barrier options (which are exotic options) cost more than the corresponding simple call and put options, whether European or American ii. The existence of volatility smile proves that the Black-Scholes model is being used to price options in the market. iii. Risk-neutral probabilities are those that make the market price of risk equal to 1. O a. i and ii O b. ii and iii O c. i and iii O d. All the given statements are true O e. None of the given statements is true