Given below are two statements:
Statement I: During Electrolytic refining, the pure metal is made to act as anode and its impure metallic form is used as cathode.
Statement II: During the Hall-Heroult electrolysis process, purified Al$$_2$$O$$_3$$ is mixed with Na$$_3$$AlF$$_6$$ to lower the melting point of the mixture.
In the light of the above statements, choose the most appropriate answer from the options given below: