Which of the following statements about Market Risk is correct? Select one: a. Market Risk is the type of risk attributable to firm-wide risk sources and remains even after extensive firm-wide diversification. b. Market Risk is the type of risk attributable to firm-wide risk sources and cannot be diversified by investing in a lot of firms. c. Market Risk is the type of risk attributable to market-wide risk sources and can be diversified by investing in a lot of firms. d. Market Risk is the type of risk attributable to market-wide risk sources and remains even after extensive diversification