<human>: Objective: To clean a clothes iron.

Which of the following solutions is more sound in terms of naive physics reasoning?

OPTIONS:
- Connect your iron to the power source and heat it well. When heated up then apply some clear wax over the entire surface of the iron by dragging a white candle into the iron surface. Do it carefully keeping the iron perfectly horizontal.        Now mop off the bulk of the liquid wax by ironing the old cloth back and forth with a gentle pressure for about 30 seconds.        Repeat the above steps for several times until the iron's surface is sparkling clean.
- Connect your iron to the power source and heat it well. When heated up then apply some colored wax over the entire surface of the iron by dragging a colored candle into the iron surface. Do it carefully keeping the iron perfectly horizontal.        Now mop off the bulk of the liquid wax by ironing the old cloth back and forth with a gentle pressure for about 30 seconds.        Repeat the above steps for several times until the iron's surface is sparkling clean.
<bot>: Connect your iron to the power source and heat it well. When heated up then apply some clear wax over the entire surface of the iron by dragging a white candle into the iron surface. Do it carefully keeping the iron perfectly horizontal.        Now mop off the bulk of the liquid wax by ironing the old cloth back and forth with a gentle pressure for about 30 seconds.        Repeat the above steps for several times until the iron's surface is sparkling clean.