Which of the following sentences observe the correct subject-verb agreement?

A. The government, together with some non-government organizations, find ways on how to protect our forests.
B. The call of the government and other volunteer groups to protect our forests move the entire nation.
C. Our school, in cooperation with the student government, are launching a school-wide campaign to promote environmental awareness.
D. Our class, together with some of our parents, support the environmental awareness program