An oil and gas project began without full funding; the remainder was to be obtained during execution but was delayed, causing contractors to suspend work. What should the project manager have done to prevent this?

The correct answer emphasizes proactive risk management. The project manager's responsibility includes identifying, assessing, and planning responses for risks, including financial risks. By ensuring the risk of delayed funding was adequately assessed and mitigated by the appropriate stakeholders (e.g., finance department, sponsors), the project manager could have implemented strategies like securing contingency funding or alternative financing arrangements before the crisis occurred. The other options are less effective: "Ensured the stakeholder anticipated obstacles..." is insufficient; anticipation alone doesn't prevent the problem. "Ensured the stakeholder who was providing additional funds remained interested..." addresses a symptom, not the root cause of the funding delay, and doesn't provide a solution for the financial gap itself. "Ensured the project team monitored and reviewed the project risk register periodically" is a good practice, but without initial adequate assessment and mitigation planning, monitoring alone won't prevent the impact of an unaddressed risk. The core issue was the lack of a proper response plan.