[单选题]
An object with a mass m slides down a roumf)v0 7p l7b.wm;vh dyn6 urm;gh z0cy c( t)dotuc-d. fqy:4 j3z$37^{\circ}$ 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. $7.8 \; m/s^2$
