A conductor has been given a charge `-3 xx 10^(-7) C` by transferring electron. Mass increase (in kg) of the conductor and the number of electrons added to the conductor are respectively

Options

A. `2 xx 10^(-16)` and `2 xx 10^(31)`
B. `5 xx 10^(-31)` and `5 xx 10^(19)`
C. `3 xx 10^(-19)` and `9 xx 10^(16)`
D. `2 xx 10^(-18)` and `2 xx 10^(12)`

Answer

D