In multi-project environments with shared resources, delays in one project can impact the performance of another. The best approach is to assess the resource constraints and develop a plan to mitigate the risk. This may involve optimizing current resources, negotiating priorities, or acquiring additional resources (internal or external) based on impact assessment. The PMBOK Guide - Seventh Edition emphasizes adaptive planning and issue resolution. Resource management is a key domain, and addressing interdependencies with actionable planning is a critical project management responsibility. Option A attempts to shift responsibility and may not resolve the bottleneck. Option B is a reactive procurement step without prior analysis. Option D is passive and does not offer a solution. References: PMBOK Guide - Seventh Edition, Planning and Delivery Performance Domains PMI Practice Standard for Resource Management -