Please choose the correct solution to the question: Once you have applied etching cream to glass, what must you do before you can begin etching?

Solution1: Rinse the glass under cold water to remove any remaining etching cream. Then, peel the contact paper from the surface of the glass.

Solution2: Rinse the glass under boiling water to remove any remaining etching cream. Then, peel the contact paper from the surface of the glass.

Answer format: solution1/solution2
Answer: solution1