The charge carried by one electron is e=−1.6×10⁻¹⁹C. The number of electrons necessary to produce a charge of -1.0 C is:
A) 6.3×10¹⁸
B) 6.3×10⁹
C) 1.6×10¹⁹
D) 1.6×10⁹
E) None of the above