Which two orders have identical bottom cross-section dimensions?

• A. Third and Fourth
• B. First and Second
• C. Second and Third
• D. First and Fourth

Answer: (A)

Focus on the bottom footprint. The bottom cross-section dimensions are defined by the width and depth of each order’s base. Two orders have identical bottom cross-section dimensions when their base width and base depth are exactly the same. In the diagram, two orders share the same base measurements, so their bottom profiles match. The other orders differ in at least one base dimension, so their bottom cross-sections are not identical. If the base dimensions match, the bottom cross-sections are identical; otherwise, they are not.