[单选题]
A 5.0-C charge is 10 m from a small test chm+302zo.iw zbfjp n7 harge. What is thcbv5d d v89yz-e magnitude of the force experienced by a 1.0 nC charge placed at the location of 5cy-dz8v b9dv the test charge?
A. $0.045 \; N$
B. $0.45 \; N$
C. $4.5 \; N$
D. $45 \; N$