[单选题]
A 10-kg box sitting on a horikz .y gere :ulfm714v3zov35dl-u8va/q. lsk pwntal surface is pulled by a 5.0-N force. A 3.0-N friction force retards the motion. What is the acceleration of tpls/ud v.- q35aw lv8khe object?
A. $0.20 \; m/s^2$
B. $0.30 \; m/s^2$
C. $0.50 \; m/s^2$
D. $5.0 \; m/s^2$
