Please choose the correct solution to the question: How to clean a bicycle helmet?

Solution1: Pour a few drops of dishwashing liquid in a bowl, add water, and dip sponge into it. Clean it thoroughly with sponge. Make sure helmet has soap everywhere then leave to air dry.

Solution2: Pour a few drops of dishwashing liquid in a bowl, add water, and dip sponge into it. Clean it thoroughly with sponge, then clean with cloth,  and leave to air dry.

Answer format: solution1/solution2
Answer: solution2