Please choose the correct solution to the question: Learn how to iron a collar when you don't have an iron.

Solution1: Heat up a hair straightener, if no iron is available, and pinch the straightener and insert the collar into the implement and pull slowly to flatten the collar.

Solution2: Heat up a hair straightener, if no iron is available, and unplug the straightener and insert the collar into the implement and pull slowly to flatten the collar.

Answer format: solution1/solution2