The correct answer is: C. Gambrel roof
A gambrel roof is a type of roof that slopes in two directions with a break in the slope on each side. The lower slope is steeper than the upper slope, and the two slopes are joined by a horizontal ridge. Gambrel roofs are often used on barns and other agricultural buildings, but they can also be found on residential homes.
A gable roof is a type of roof that has two sloping sides that meet at a ridge. Gable roofs are the most common type of roof in the United States.
A hip roof is a type of roof that has four sloping sides that meet at a point at the top. Hip roofs are more common in warm climates than in cold climates.
A mansard roof is a type of roof that has four sloping sides, with the lower two sides being steeper than the upper two sides. Mansard roofs are often used on French-style buildings.