[单选题]
A 1.0-C charge is 15 m from a hf+nm8ta f+n i1aj,/k 3uhs8psecond charge, and the force between them is tah7 hr)zw/bdi ffgnso4 s0u/ .k3,2x1.0 N. What is the magnitude of the second cha.f) 0 rsf2z/hxb,o ad7t 3iwkng4/hsurge?
A. $25 \; C$
B. $1.0 \; C$
C. $0.025 \; C$
D. $25 \; nC$