When a requirement arises during project execution that affects scope, schedule, or budget, the project manager must follow formal change control procedures. Procuring a server that was not part of the original baseline constitutes a change. Therefore, the correct action is to raise a change request and obtain approval before proceeding. Option A bypasses change control protocols, which may lead to governance or audit issues. Option B shifts the cost improperly without formal agreement. Option C assumes the change is covered under contingency without verification. References: PMBOK Guide - Seventh Edition, Delivery Performance Domain PMBOK Guide - Sixth Edition, Section 4.6: Perform Integrated Change Control -