A System of 11 Protons and 9 Neutrons Has a Net

Multiple Choice

A system of 11 protons and 9 neutrons has a net charge of

A) 17.6 $\times$ 10^-19 C.
B) -17.6 $\times$ 10^-19 C.
C) 32.0 $\times$ 10^-19 C.
D) 11.0 $\times$ 10^-19 C.
E) -32.0 $\times$ 10^-19 C.