Please choose the correct solution to the question: To create lemon zest.

Solution1: For the lemon zest, grate only the inner yellow skin. Avoid using the outer white skin as it will have a bitter taste. The lemon zest will brighten up all the flavors in the muffins.

Solution2: For the lemon zest, grate only the outer yellow skin. Avoid using the inner white skin as it will have a bitter taste. The lemon zest will brighten up all the flavors in the muffins.

Answer format: solution1/solution2
Answer: solution2