A plane is destined for Seattle for a brief layover. Of the 38 pieces of luggage on the plane, 13 pieces are Vancouver-bound and 25 pieces are Calgary-bound. On the ground in Seattle, a security officer randomly selects 28 pieces of luggage to inspect. Please use this information to answer the following questions.
A) What is the probability that there are exactly 8 Vancouver-bound pieces of luggage in the 28 selected pieces?
B) What is the probability that there are less than 18 Calgary-bound pieces of luggage in the 28 selected pieces?