Hi, I dont really understand the sens of that question

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Your project has a critical path of twenty-three weeks. What is the impact on the critical path if management wants ou to complete the project in twenty weeks ?

A. Duration of the critical path increases by three weeks

B. Duration of the critical path must decrease by three weeks.

C. Duration of the ritical Path remains the same.

D. Duration of the critical path cannot be determined

Answer : C.

Explanation :

B is incorect because there will be no decrease in the duration for the critical path

C If the management wants to complete the project in tewenty weeks, then the project float will be: 20-23 = -3 weeks. the project float compares the critical path with an externally imposed date and may be negative. You may be forced to fast-track or perform crashing to ensure that the project is completed within the dates required by the management). Remember the critical path gives you the fastet path through the project and tells you when the project will be completed based on current resources. Without any changes to the current plan, the new externally imposed date will not change the critical path.

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I thought It was B...  I think the explanation in the C is logic but no too sure, the wording on the question makes me think more B than C

anyone ?