1. For the upcoming semester, Ashley is planning to take three courses (math, English, and
physics. According to time blocks and highly recommended professors, there are 8
sections of math, 5 of English, and 4 of physics that she finds suitable. Assuming no
scheduling conflicts, how many different three-course schedules are possible?
[DOK2/SMP]
a. 120
b. 180
c. 160
d. 40