[单选题]
An object with a mass m m.j/e1fa0d +v4kqj phslides down a roug8kpa 8eub ;r1uh $37^{\circ}$ inclined plane where the coefficient of kinetic friction is 0.20. What is the acceleration of the object?
A. $4.3 \; m/s^2$
B. $5.9 \; m/s^2$
C. $6.6 \; m/s^2$
D. $7.8 \; m/s^2$
