11. You don't have to show your work. Just the answer is enough

A person's level of blood glucose and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random variable x will have a distribution that is approximately normal with mean u = 81 and standard deviation of o =21. What is the probability that, for an adult after a 12-hour fast, x is between 113 and 121? O 0.028 O 0.035 O 0.936 O 0.064 O 0.954