[单选题]
A foam ball of mass 0.150 g carries a charge of -2.005qi v 2hl0+ekx nC. Tuwf .jyv(u n,2he ball is placed inside a uniform electric field, and is suspended aga.fuvu2n ( yjw,inst the force of gravity. What are the magnitude and direction of the electric field?
A. 573 kN/C down
B. 573 kN/C up
C. 735 kN/C down
D. 735 kN/C up
