You are the project manager at a construction company. Your company is currently in the process of developing a 500 unit apartment complex.your company has subcontracted all the electrical wiring of the building to xyz electrical. The subcontractors work involved wiring the building for electrical power, as well as cable and internet/ Ethernet wiring. The contractor has just completed the work, and you are in the process of inspecting his work.

However, you ve just discovered that the subcontractor forgot to install Cat5 Ethernet /internet cabling throughout the building. The subcontractor's performance did not meet the contract requirement. Which of the following statement are true?

A. You are in the close procurement process and performed a contract audit to verify the contractors work.
B. you are in the validate scope process, and performed a quality audit of the contractors work.
C. You are in the perform Quality assurance process and performed a quality audit of the contractors work.
D. You are in control communication process and performed a performance review of the contractors work.

Correct answer is C. Can anybody please explain why this is correct answer.