Please choose the correct solution to the question: What is the best way to brush the hair of a dog?

Solution1: Hair brushes specifically made for dogs would be perfect for this as they have long fibrils to reach deep into their fur.

Solution2: A good quality toothbrush would be the best pick for this as they would be gentle on the dog's skin, making sure they don't get any scratches or itches.

Answer format: solution1/solution2