Veronica needs to hire carpenters and masons to renovate her house. She needs 9 laborers to finish the work, and has saved $2150 to pay for the laborers. Carpenters charge $250 and masons charge $225 for a day's work. How many carpenters and masons can she hire?
A 5 carpenters and 3 masons
B 5 carpenters and 4 masons
C 4 carpenters and 5 masons
D 3 carpenters and 6 masons