Which statement about sub-projects is true?

• A. Sub-projects are unrelated tasks.
• B. Sub-projects require no planning.
• C. Sub-projects must be completed after the main project.
• D. Sub-projects are parts of a project divided into manageable components and can be outsourced.

Answer: (B)

Sub-projects are parts of a project that are divided into manageable components to improve focus, scheduling, and control. Each sub-project has its own goals, timeline, and resources, and is integrated into the overall plan. Because some work can be specialized or sourced externally, sub-projects can be outsourced while still aligning with the main project's objectives. The other statements miss key realities: sub-projects are not unrelated tasks and do require planning, and they don't have to wait to be completed after the overall project—the work is coordinated within the project's life cycle.