Kevin cuts a foam block along the red line. When he looks at the new
exposed face, what is the shape of the cross-section?
5 cm
7 cm
4 cm
A. A rectangle, 4 cm by 7 cm
B. A rectangle, 4 cm by 5 cm
C. A square, 4 cm by 4 cm
D. A rectangle, 5 cm by 7 cm