Which term refers to a picture of a vertical cut through an object showing its internal structure?

• A. A cross-section
• B. An extrusion
• C. A correlation
• D. A mechanism

Answer: (A)

A cross-section is a view created by cutting the object along a plane that reveals its inner features. This kind of picture lets you see inside—like layers, cavities, or internal supports—that aren’t visible from the exterior, and you can imagine a vertical cut to show how things vary from top to bottom. The other terms describe different ideas entirely: extrusion is shaping material by pushing it through a die, correlation is a statistical relationship between variables, and a mechanism is how parts work together. So the term that best captures a picture of the interior revealed by a vertical slice is a cross-section.