A project sponsor indicates that a project should build a facility at the lowest cost,...

Project management follows the iron triangle principle—balancing cost, time, and quality. A project cannot maximize all three simultaneously without trade-offs.

The best approach is to work with the sponsor to adjust expectations realistically within feasible constraints.

Implementing the project as instructed (Option B) could result in failure due to unrealistic goals.

Lowering quality (Option C) without stakeholder agreement is unprofessional and risks dissatisfaction.

Cancelling the project outright (Option D) should be a last resort. Instead, negotiation and adjustment are preferred​.