Fetuses detect the aroma of food their mothers eat by the third trimester. So, D.
If you are talking about books, then there are two important American classics that were written in 1947, so I guess you can choose either one of them:
1. A Streetcar Named Desire, written by Tennessee Williams
2. The Pearl, written by John Steinbeck
If you are not talking about books, then you should tell us what you mean by classics.
11 notes can go on a staff.
Treble Clef: D, E, F, G, A, B, C, D, E, F, G. (Re, mi, fa, sol, la, si (ti), do, re, mi, fa, sol)
Bass Clef: F, G, A, B, C, D, E, F, G, A, B. (Fa, sol, la, si (ti), do, re, mi, fa, sol, la, si (ti))
Hope this helps! :)
