<human>: Objective: Removing spray paint from concrete

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

OPTIONS:
- Apply nail polish remover to the painted surface.Cover the remover with sand paper. Use a pressure washer to remove the gel.Apply masonry cleaner to porous surfaces after stripping
- Apply paint stripping gel to the painted surface.Cover the gel with plastic wrap. Use a pressure washer to remove the gel.Apply masonry cleaner to porous surfaces after stripping
<bot>: Apply paint stripping gel to the painted surface.Cover the gel with plastic wrap. Use a pressure washer to remove the gel.Apply masonry cleaner to porous surfaces after stripping