Passage Summary: The lawyer says we shouldn't trust the witness because they claim they didn't recognize a famous celebrity right in front of them, even though they say they recognized the attacker.

Conclusion: The witness's testimony should be excluded from the legal proceedings.

Reasoning: The witness claims to recognize the attacker but failed to recognize the victim, who is a famous television personality.

Analysis: This is a 'Sufficient Assumption' question, so we need a rule that makes the conclusion absolutely mandatory. There is a gap between 'the witness failed to recognize a celebrity' and 'the testimony must be thrown out.' Look for an answer choice that functions as a strict legal rule, stating that if a witness fails to recognize a famous person at the scene, their entire testimony is automatically disqualified.