Whether a randomly selected individual has blood type O-negative is a binomial random variable. Assume that its probability will be approximated using the normal distribution. Describe the area under the normal curve that will be computed in order to determine the probability that the number of people with blood type O-negative is between 14 and 27, inclusive.

Describe the area under the normal curve. Choose the correct answer below.

a. left of x=13.5

b. right of x=27.5

c. between x=13.5 and x=27.5

d. between x= 14 and x=27