Please choose the correct solution to the question: clean your hairbrush

Solution1: Once a month or so, shampoo your hairbrush to remove dirt, oil, and any built-up hair products. Holding the handle, swirl the head of the brush around in a bowl of warm water. Next, put a few drops of gentle shampoo on the handle of a toothbrush and use the toothbrush to scrub the bristles and base of the hairbrush.

Solution2: Once a month or so, shampoo your hairbrush to remove dirt, oil, and any built-up hair products. Holding the handle, swirl the head of the brush around in a bowl of warm water. Next, put a few drops of gentle shampoo on the bristles of a toothbrush and use the toothbrush to scrub the bristles and base of the hairbrush.

Answer format: solution1/solution2
Answer: solution2