(1) My family has a quaint cottage at a small, private lake. (2) The cottage is about 75 years old, but we try to keep it in goo
d condition. (3) The outside is white with green trim on the windows and shutters. (4) In front of the cottage is a flagstone walk that leads down to a stone patio. (5) The patio itself is right next to the water. (6) Out from the patio stretches a dock where we keep a small rowboat tied. (7) Every summer, my family sets aside a week when we all get together at the lake for a family vacation/reunion. What purpose do sentences 3 through 6 serve in this paragraph? A. They introduce the main idea. B. They show cause and effect. C. They set up a comparison. D. They provide supporting details.