Please choose the correct solution to the question: To soft boil an egg,

Solution1: place the egg in boiling water until the white part of the egg is cooked, and the yolk of the egg is completely cooked and solid as well.

Solution2: place the egg in boiling water until the white part of the egg is cooked, and the yolk of the egg is slightly cooked but still a little bit soft and runny.

Answer format: solution1/solution2