The best course of action in responding to the internal audit inquiry is to provide justification for the lower risk rating. This would demonstrate that the risk record was updated based on a valid and documented rationale, such as changes in the risk environment, risk drivers, risk indicators, or risk responses. Providing justification would also help to maintain the transparency and accountability of the risk management process, and ensure that the internal audit is satisfied with the risk assessment outcome. References = Risk and Information Systems Control Study Manual, 7th Edition, Chapter 4, Section 4.2.3, page 184.