If your expected value is 110 and the standard deviation is 12, which of the following is true?

A. There is approximately a 99 percent chance of completing this activity in 86 to 134 days.

B. There is approximately a 68 percent chance of completing this activity in 98 to 122 days.

C. There is approximately a 95 percent chance of completing this activity in 98 to 122 days.

D. There is approximately a 75 percent chance of completing this activity in 86 to 134 days.