[单选题]
A piece of plastic has a net charge of +2.00 mC. How zs 5j2 s2:mtndmany lx ggs75s4:m fmore protons than elec54ggssxm l:f7 trons does this piece of plastic have?
A. $1.25 \times 10^{13}$
B. $1.25 \times 10^{19}$
C. $2.50 \times 10^{13}$
D. $2.50 \times 10^{19}$
