Which of the following statements about the coefficient of a security are true, according to the Capital Asset Pricing Model? (a) always lies between 0 and 1. (b) increases with increasing covariance between a security and the market. (c) represents the degree to which the market fluctuates with changes in the risk-free interest rate. (d) The higher the fluctuation of a security with fluctuations in the market, the higher . (e) is the slope of a regression of a securitys returns against the market return.