Over the past 10 years, the return on Stock A has averaged 8.4% with a standard deviation of 2.1%. The return on Stock B has averaged 3.6% with a standard deviation of 0.9%. Which of the following statements is true? Select one: O a. Stock A has smaller relative variation than Stock B O b. Both stocks exhibit the same relative variation. O c. Stock B has smaller relative variation than Stock A O d. Unable to tell with the given information.