The gestation period for a blue whale is approximately 11 months compared to humans at 9 months. If the standard deviation of gestation for blue whales is 0.75 months, what is the percentage of blue whales that will give birth between 10 and 12 months? (Round to 2 decimal places)
a. 0.95
b. 0.82
c. 0.73
d. 0.68