Read the paragraph about community service. Across the nation, high school students are loading their schedules with rigorous academic courses. Countless hours are being spent conjugating verbs, measuring angles, and memorizing historical facts in attempt to develop their young minds. But what about character? Kids need to look up from their textbooks and consider their communities. Kids who are in service to their neighbors and communities will emerge from high school better prepared than their academic peers. They will not only be prepared for classrooms, but for the life around it.

What is the controlling idea?

A. Students with rigorous academic courses spend many hours studying.
B. Community-service opportunities should replace academic courses.
C. Memorizing facts and practicing math skills assures academic success.
D. Youths should prioritize community service in preparation for their future.