Which of these inferences about school classrooms is supported by the "Year–Round Schooling Helps Students, Teachers, and Families"?
A.
Year–round schooling makes scheduling classroom time easier.
B.
Year–round schooling can help schools utilize their existing classrooms better.
C.
Multi–track schedules allow teachers to teach students at different levels in the same classroom.
D.
Multi–track schedules make it easier for school districts to maintain and clean their classroom facilities.