Two-stage procurement, involving pre-qualification followed by tender, is typically recommended for large-scale projects where many potential contractors might be interested. This process helps to shortlist qualified contractors, thus streamlining the tender evaluation and increasing the quality and competitiveness of submitted offers.

Option C correctly reflects this approach for complex or large projects where competition needs to be managed.

Option A is incorrect since simple, short-duration projects usually do not require complex procurement.

Option B is incorrect because if only a few capable contractors exist, pre-qualification may be less necessary.

Option D is incorrect as international financing does not always mandate two-stage procurement, although it often influences procurement methods.