Idea: Match the three Ms to the natural time order of dealing with a risk.
Before a risk hits you try to lower it, which is Mitigation. During the project you watch it, which is Monitoring. If it strikes you cope with it, which is Management. That sequence, Mitigation then Monitoring then Management, is exactly RMMM.
\[ \text{Mitigation} \to \text{Monitoring} \to \text{Management} \]
\[\boxed{\text{Option D: Risk Mitigation, Monitoring, and Management}}\]