The automobiles are identical. The automobiles wear out quickly. The automobiles are difficult to design. The automobiles can be produced on an assembly line.
I gave my students this multiple choice question: Which of the following statements best describes a result of using interchangeable parts to manufacture automobiles?

Only one answer is correct among these 4 choices:
- The automobiles are identical.
- The automobiles wear out quickly.
- The automobiles are difficult to design.
- The automobiles can be produced on an assembly line.

Could you tell me which one is correct?

The automobiles can be produced on an assembly line.