Based on the information in "Year–Round Schooling Helps Students, Teachers, and Families," which sentence BEST explains how a multi–track schedule benefits students?
A. They take shorter, more frequent breaks throughout the year.
B. In addition, students can advance when they are ready rather than waiting for a new school year to start.
C. Teachers can provide more attention to the students on their track.
D. Vacationing in the off–season also allows families to avoid high prices and large crowds.