Answer:
Yes. The auditors were negligent for accepting photocopies of purchasing records as these are not sufficient audit evidence to base a opinion on.
Step-by-step explanation:
As part of their professional skepticism, auditors must obtain sufficient audit evidence.
Audit Evidence must be reliable and relevant to be considered sufficient for the auditor to base their opinion.
Photocopies were not reliable as they do not contain the original signatures responsible personnel and may be altered.