Sandeep wants to coat his wooden pencil with some metal to give it a shiny look using electricity. This can be done by
A electroplating using metal plate as the positive electrode and pencil as the negative.
B electroplating using metal plate as the negative electrode and pencil as the positive.
C electrorefining using metal plate as one of the electrodes and pencil as other.
D cannot be done as wood is a non-conducting material