When Planning the Physical Arrangement of the Classroom, a Teacher

When planning the physical arrangement of the classroom, a teacher should implement all the following suggestions except which one?

A) Make sure that students can easily observe whole-class presentations without moving chairs or stretching their necks.
B) Make sure that there are a few areas in the classroom in which students can avoid being seen so that they can have some privacy.
C) Reduce congestion in high-traffic areas, such as near a pencil sharpener and bookshelves, by keeping student seats away from these locations.
D) Keep often-used materials available in locations that can be accessed easily to simplify setting up and cleaning up after each activity.