1. The problem asks to find the lines of symmetry for a regular hexagon and select all that apply from lines l, m, n, and o. 2. A regular hexagon has 6 lines of symmetry: 3 lines pass through opposite vertices (diagonals), and 3 lines pass through midpoints of opposite sides. 3. Given the description: - Lines l and n are diagonal lines crossing through opposite vertices. - Line m is a vertical line through the center. - Line o is a horizontal line through the center. 4. Since l and n are diagonals through opposite vertices, they are lines of symmetry. 5. Line m, the vertical line through the center, is a line of symmetry because it passes through midpoints of opposite sides. 6. Line o, the horizontal line through the center, is also a line of symmetry for the same reason. 7. Therefore, all lines l, m, n, and o are lines of symmetry for the regular hexagon. Final answer: A l, B m, C n, D o are all lines of symmetry.