Two blocks of masses $$m_1 = 8$$ kg and $$m_2 = 7$$ kg are connected by a light string passing over a light frictionless pulley. The mass $$m_1$$ is at rest on the inclined plane and mass $$m_2$$ hangs vertically. The angle of inclination is $$30^\circ$$. Therefore, the force of friction acting on $$m_1$$ is

A

30 N up the plane

B

30 N down the plane

C

40 N up the plane

D

40 N down the plane