The project manager has noticed a vendor is not performing in accordance with the SLA.

Which of the following items should the project manager use to highl

ight the vendor-s areas of poor performance?

A. Balanced score card

B. WBS

C. Post-project evaluation

D. PERT

References: Kim Heldman, CompTIA Project+ Study Guide, 2nd Edition, Sybex, Indianapolis, 2017, p. 332