Please choose the correct solution to the question: how can you soften butter?

Solution1: leave the butter sit out of the refrigerator for an hour before use.

Solution2: Put a large pan of ice on the bottom rack of the cold oven. Put the butter in a  small bowl and set the small bowl in the oven directly above the pan of ice Keep changing the ice as it melts. Wait for butter to soften.

Answer format: solution1/solution2