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.
The purpose or reason for creating art ?
The answer would be "b" because Rothko used simple geometric shapes
Curriculum design is the planning period when instructors organize the instructional units for their course.