45 46 48. 48 49 50 Which of the following statements concering the standard deviation are correct? 1 The greater the standard deviation, the lower the risk. II. The standard deviation is a measure of volatility. The higher the standard deviation, the less certain the rate of retum in any one given year. IV. The higher the standard deviation, the higher the expected return. A) I and III only B) II, III, and IV only C) I, III, and IV only I. 11, and III only I. II, III, and IV