Tracy used the expression to find the surface area, in square centimeters, of the rectangular pyramid below. Which statement best describes her work? Tracy’s answer will be incorrect because she forgot the factor in the expression representing the area of the triangular faces. Tracy’s answer will be incorrect because the pyramid has five faces and her expression finds the sum of only three products. Tracy’s answer will be correct because she made use of the fact that in her expression. Tracy’s answer will be correct because a rectangular pyramid has only three faces and the expression finds the sum of three products.