Which plan should Linde consult to understand available products or services within her budget?

To determine the available products or services within her budget, Linde should consult the procurement plan. The procurement plan is specifically designed to outline what resources, including products and services, will be acquired for the project. It details the acquisition strategy, defines the criteria for vendor selection, and lists the contracts or purchase agreements necessary to fulfill the project's requirements.

The procurement plan serves as a roadmap for managing the purchasing process effectively, including considerations of cost, quality, and timing. By reviewing this plan, Linde can gain insights into the available options that align with the project's budget constraints and ensure that the necessary resources are obtained in a timely and efficient manner.