Please choose the correct solution to the question: How do you get grout lines in the bathroom clean?

Solution1: Spray the grout with hot water and scrub them with a stiff bristle brush or a grout brush to lift any dirt or grime off the surface.

Solution2: Spray the grout with hot vinegar and scrub them with a stiff bristle brush or a grout brush to lift any dirt or grime off the surface.

Answer format: solution1/solution2
Answer: solution1