[单选题]
A 5.0-C charge is 10 m from yt -dh* qb-g)okvx29kt z*2j;if2cph a::so fnx6/y jz 6b2l4dy cy6kb small test charge. What is the magnitude of the el2 c :b o6fzlsjy y:/x6n46ydbkectric field at the location of the test charge?
A. $4.5 \times 10^{6} \; N/C$
B. $4.5 \times 10^{7} \; N/C$
C. $4.5 \times 10^{8} \; N/C$
D. $4.5 \times 10^{9} \; N/C$