Sugar and Spice stock is expected to produce the following returns given the various states of the probability. What is the standard deviation for this stock? Probability Rate of Return 0.4 0 0.3 1% 0.2 2% 0.1 3% Select one: O A. -1.28 percent B. -1.0 percent O C. 1.0 percent OD. 0.70 percent