A8. Nine chairs are arranged in a row behind a long table. Six students and three teachers, Mr. Aap, Mr. Noot, and Ms. Mies, take their seats on these chairs. First, the three teachers arrive. They decide to sit in such a way that each teacher is between two students. In how many ways can Mr. Aap, Mr. Noot, and Ms. Mies choose their seats?
(A) 12
(B) 36
(C) 60
(D) 84
(E) 630
A8. First, imagine the six students taking a chair and sitting in a row. Then the teachers choose a place between the students with their chair. Mr. Ape can then place his chair in five spots between the six students and sit down. Mr. Nut can then place his chair in four spots and sit down, and for Ms. Mice, there are then still three spots left. The number of possibilities is thus $5 \times 4 \times 3=60$. (C).