What mistakes do candidates make on this PMP question?

Thinking it stands for 'New' or 'Non'.

Task 8: Negotiate project agreements — PMP Practice Question 36

Q01A project manager leading a hybrid project notices that two senior engineers are constantly argui...Hard

Q02During a retrospective, an agile team expresses frustration that a stakeholder frequently interru...Hard

Q03Two team members have a fundamental disagreement about a technical approach. Both options are via...Hard

Q04A project manager discovers that a vendor has been contacting team members directly to offer gift...Hard

Q05A key stakeholder is unhappy with the project's progress and is verbally aggressive towards the p...Hard