The free electrons of a metal are free to

Consider the following incomplete statement "Ohm's law relates potential difference with _____for a given resistance". The suitable choice for the missing word is

Consider the following statements:

A. In series connection, the same current flows through each element.

B. In parallel connection, the same potential difference gets applied across each element.

It is not possible to have a particle with charge $2.0\times {10}^{-19} \mathrm{C}$.