The historical average return for Yeji Stock is 9.8%. The historical standard deviation is 19.6%. Based on those numbers answer the following for Yeji Stock:

A: In about two of every three years, your return should fall inside the range of ______% to ______%.

B: In about once in twenty years, your return should fall outside the range of ______% to ______%.

C: In about once in two hundred years, your return should be greater than ______%