You are reviewing a Claude-generated competitor brief for unsupported claims.

Answer C is correct. A defensible fact-check begins with a complete reading of the brief (5), which reveals its overall argument and flags surprising or unusually confident assertions. The reviewer then identifies the concrete factual claims, statistics, and citations that can actually be tested (4). Those items are checked against supplied evidence or trustworthy external sources (1). Any unsupported, contradictory, or inaccurate claim is then recorded with its location and severity (3), creating a usable audit trail. Only after the evidence is assembled should the reviewer decide whether to correct the text, re-prompt Claude, or escalate the issue (2). This produces the sequence 5, 4, 1, 3, 2. Option D reverses the first two activities, while Options A and B attempt verification before a proper claim inventory exists. Anthropic’s guidance recommends structured research, explicit success criteria, and verification across sources; the AI Fluency framework’s Discernment and Diligence competencies also keep evaluation and accountability with the human reviewer. The PDF marks D, but that order is weaker and should be corrected to C. Anthropic prompting best practices

================