A carpenter's sketch of a room does not include a scale. She measures a wall that has been built and finds that it is 38.5 ft. Long. On the blueprint this wall is 7 in. Long. What is the scale for this blueprint? A. 1 in. : 5.5 ft. B. 1 in. : 55 ft. C. 1 in. : 266 ft. D. 1 in. : 269.5 ft.