Final answer:
Emphasis of an important matter is an example of circumstances that would not limit the audit scope, as it is a normal part of an auditor's report to highlight specific areas without restricting the overall audit.
Step-by-step explanation:
An example of circumstances that would not limit the audit scope among the choices provided is c. Emphasis of an important matter. This is because emphasizing an important matter is a part of the auditor’s report where a specific area is highlighted, but it does not limit the ability of the auditor to review the entire set of financial statements. Options a (An inadequacy in the accounting records) and b (The inability to gather sufficient competent evidence) would indeed limit the audit scope as they restrict the auditor's ability to perform the audit. Option d (The timing of the fieldwork) could pose a logistical challenge but would not necessarily limit the audit scope unless it prevented the auditor from being able to complete an aspect of the audit work.