answer the case study below related to auditing the clauses of ISO 9001

Scenario A) In a manufacturing company, you find some of the final productions are damaged or not passing the quality checks. When you ask one of the labours he says that there is a machine which he believes that it's not functioning properly and that's why some of the products are rejected during the quality checks. Now as an auditor do you raise an NC or you will need to look at more evidences? If it is an NC what is the relevant ISO 9001 clauses? (Hint: Clause 7.1) Scenario B) You as an auditor visiting a warehouse of a manufacturing company and you notice that there are some packages that are there for long time and not delivered to customer. When you investigate, they tell you that the customer refused the final product as he believes that it is not what he was requesting for. But the sales team are negotiating with the customer to solve the problem. Now as an auditor do you raise an NC or you will need to look at more evidences? If it is an NC what is the relevant ISO 9001 clauses? (Hint: Clause 8.2 and 10.2) Scenario C) You are visiting an HR department of a company and you notice that recently they sent some employees for training. When you ask the HR manager "was the training effective?", he tells you that he asked the trainees about the training and they said its very good and efficient. Now as an auditor do you raise an NC or you will need to look at more evidences? If it is an NC what is the relevant ISO 9001 clauses? (Hint: Clause 7.2)