19. Suppose P is the set of all students at Central High School,with A the set of all students on the track team and B the
set of all students in the choir. Identify in words thestudents described by region (w) of the following figure.

Choose the correct answer below.
O A. All students at Central High who are on the track team or in the choir
OB. All students at Central High who are not on the track team and are not in the choir
OC. All students at Central High who are on the track team but are not in the choir
OD. There are no students from Central High in this set.