[单选题]
A 5.0-C charge is 10 m f7 zwaes8*bs am p6/m4n)mz0dzrom dd +wksxtn99 .6 u:jctl93alqa small test charge. What is the magnitude of the electric fiad3l+k 6t9j n:u .9ltdwx9qsceld 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. $4.5 \times 10^{9} \; N/C$