[单选题]
Two 3.00-mC charges ar2 .wgbqr: j.p/xls: sre glnfode /4n ef01s8.2eze mt2at the ends of a meter stick. Find the electrical potential for the center 42eeffe./g e1n2 o8l tdmsn0z of the meter stick.
A. zero
B. $2.70 \times 10^{4} \; V$
C. $5.40 \times 10^{4} \; V$
D. $1.08 \times 10^{5} \; V$
