Please choose the correct solution to the question: How to preserve whole grapes.

Solution1: Wash grapes well in cool water, pat dry with a towel, spread into even layer on baking sheet and place in freezer until frozen, then place in freezer bags for up to 6 months.

Solution2: Wash grapes well in cool water, pat dry with a towel, spread into even layer on baking sheet and place in the oven until frozen, then place in freezer bags for up to 6 months.

Answer format: solution1/solution2
Answer: solution1