A rectangle with a length of 15 ft and a width of 6 ft has an area of 90 sq ft and a perimeter of 42 ft. Which rectangle has dimensions that give the same area as this rectangle, but different perimeters? A. 2 ft by 45 ft B. 4 ft by 17 ft C. 5 ft by 16 ft D. 40 ft by 50 ft