An internal assistant sometimes states invented policy rules with confident wording. The company needs more reliable answers based on approved documents. Which measures directly address this limitation? Select 2 answers.

1. Set a larger maximum response length and assume additional words guarantee accuracy.
2. Treat a confident writing style as a calibrated probability that the answer is true.
3. Remove all source documents so the model cannot disagree with them.
4. Ground answers in retrieved approved passages and provide source references that reviewers can inspect.
5. Evaluate factual support on representative questions and route unsupported or high-impact answers for human review.