[单选题]
A 5.0-C charge is 10 m from a synt*//cx u )xhmall test ch/zi5 a9yxo hb mggdm:n-4 b54barge. What is the magnitude of the force experienced by a 1.0 nC charg:bzdi x5h-m4a9 n gyb45 /gbmoe placed at the location of the test charge?
A. $0.045 \; N$
B. $0.45 \; N$
C. $4.5 \; N$
D. $45 \; N$