20 The sentence “ _______ ” is NOT relevant support for the setting of the two classrooms designed by the
researchers.
(A) The researchers selected two identical classrooms located side by side in the psychology building.
(B) Besides, an alcohol-based beautiful hand sanitizer was placed in the room for students to use.
(C) Several walls were painted bright colors, art posters hung on the walls, large plants added to the room,
(D) and colorful Chinese kites hung from the ceiling.
In addition to traditional desks, a part of the room was outfitted with area rugs, color-coordinated
cushions, and wooden cubes to provide nontraditional seating.