Which of the following statement(s) regarding the capital allocation line (CAL) is (are) correct? I. The CAL shows risk-return combinations. II. The slope of the CAL equals the increase in the expected return of the complete portfolio per unit of additional standard deviation. III. The slope of the CAL is also called the reward-to-volatility ratio. O Only 1 Only 11 O II and III I and III I, II, and