Calculate the charge carried by $12.5 × 10^{18}$ electrons.

$\begin{array}{1 1}(A)\;2\;c\\ (B)\;4\;c \\(C)\;3\; c \\(D)\; 6\;c\end{array}$

$Q = 12.5 × 10^{18} × 1.6 × 10^{–19}$
$\quad=2c$