Each project's workload costs can vary from month to month, but the (Digital Leader)

Correct answer: C) Turn on committed use discount sharing, and create a commitment for the combined usage.
Committed Use Discounts (CUD): These discounts offer significant savings if you commit to a certain amount of usage for a specific service over a period of time. By turning on committed use discount sharing, you can ensure that the commitments made for one project can be applied to the usage in other projects linked to the same billing account. This allows for better utilization of commitments across all projects, optimizing costs effectively.

Combined Usage: Since the overall combined cost of all projects is relatively stable, creating a commitment for the combined usage ensures that the organization benefits from discounted rates for the total usage across all projects. This approach leverages the stable combined cost to maximize savings through commitments.

Options A, B, and D are not as suitable in this scenario:

Option A (Purchase a commitment per project): This approach might lead to inefficient allocation of commitments, as some projects might not fully utilize their commitments while others may exceed theirs. This could result in missed savings opportunities.

Option B (Create a billing account per project): While this approach provides isolation of costs per project, it doesn't necessarily optimize costs efficiently. It could lead to increased administrative overhead in managing multiple billing accounts, and it wouldn't leverage the combined usage for optimized discounts.

Option D (Move all workloads into one consolidated project): Consolidating all workloads into a single project might simplify management, but it doesn't necessarily optimize costs unless combined with proper utilization of commitments. It might also not be feasible if there are reasons to keep workloads separate, such as security, organizational, or compliance requirements.