Please choose the correct solution to the question: how do I clean my tongue

Solution1: Extend your tongue. This is so that you can access the full length. ...    Scrape or brush your tongue with a toothbrush from the back of the tongue to the front. Do this repeatedly. ...    Rinse your mouth. Use mouthwash and rinse thoroughly to wash away any remaining loose residue, and to freshen your breath. ...

Solution2: Extend your tongue. This is so that you can access the full length. ...    Scrape or brush your tongue with a foam brush from the back of the tongue to the front. Do this repeatedly. ...    Rinse your mouth. Use mouthwash and rinse thoroughly to wash away any remaining loose residue, and to freshen your breath. ...

Answer format: solution1/solution2
Answer: solution1