Please choose the correct solution to the question: To keep a cake from sticking to the pan when it's done cooking.

Solution1: The pan should be sprayed with alcohol and covered with a thin layer of white flour so the cake won't stick to the pan when it is finished.

Solution2: The pan should be sprayed with vegetable oil spray and covered with a thin layer of white flour so the cake won't stick to the pan when it is finished.

Answer format: solution1/solution2
Answer: solution2