One Day Each Week, a Preschool Teacher Has Her Children

One day each week, a preschool teacher has her children lie on the rug and listen to complex pieces of classical music instead of the music they usually hear in school and in their homes.Why would she do this?

A) She wants to introduce them to different kinds of music.
B) She wants them to learn to play more complex music.
C) She wants their parents to think she has high standards.
D) She thinks it provides a good background for resting quietly.