[单选题]
99.03: If the net force on an o3:-bsc adb g5ybject wi gvjf,o+z 1,sere doubled while at the same time the mass of the object was halved,then the acceleration1j vg sf+i,o,z of the object is
A. 1/4 as great.
B. 1/2 as great.
C. 2 times greater.
D. 4 times greater.
E. unchanged.
