[单选题]
Two 3.00-mC charges are at the ends of a meter stick. Finl j)6f,* axyjzd the euhd( )6 q)cv xy9ic8eilectrical potential for the center of the meter 9) q)chyc6d u8 vi(xiestick.
A. zero
B. $2.70 \times 10^{4} \; V$
C. $5.40 \times 10^{4} \; V$
D. $1.08 \times 10^{5} \; V$
