Which of the following option, if true, would most undermine the conclusion?
Observation: A large number of street vendors moved from the city market area to the main railway station area. Conclusion: The City Market Authority must have enforced stricter regulations, causing the vendors to relocate.
Show answer & explanation
Correct answer: C
Explanation
The opening of a new office complex provides an alternative reason (increased foot traffic) for vendors relocating, thereby weakening the conclusion that stricter regulations caused the shift.
Hence, the correct answer is option 3.