Which sentence is correctly spelled and capitalized?
A. Don and leon reported on their efforts to find volunteers to work concessions at the Oakmont high game.
B. Don and Leon reported on their efforts to find Volunteers to work concessions at the Oakmont High game.
C. Don and Leon reported on their efforts to find volunteers to work concessions at the Oakmont High game.
D. Don and Leon reported on there efforts to find volunteers to work concessions at the Oakmont High game.