A DoD contracting officer allowed fewer than 30 days for receipt of proposals in response to a competitive solicitation. Only one offer was received. What action is among those the contracting officer must take?

While setting aside contracts for small businesses is a valid strategy, it does not address the immediate issue of insufficient proposal time. This action would require a new determination and a different solicitation approach, rather than simply extending the proposal period.

Converting to a sole source acquisition may not be appropriate if the goal is to encourage competition. This action would eliminate the opportunity for other potential offerors to compete, which contradicts the principles of fair competition unless justified by specific circumstances.

While extending the time for proposals is a viable option, a minimum extension of only 15 days is insufficient to meet the requirements for fair competition. The regulation stipulates at least 30 days is necessary to ensure adequate opportunity for all interested parties to submit proposals.