Which sentence uses a verb that agrees with its subject?

A.Farmers in Costa Rica uses machetes.
B. The colors of the Canadian flag are red and white.
C. The plants in her window box sprouts quickly.
D. A hat with red flowers were left on the bench.

A. The road beyond these buildings need to be repaved.
B. Small mammals like mice and other rodents makes frequent meals for snakes.
C. Rome in its early days was a small town.
D. The front teeth of a rodent keeps growing.