Final answer:
TRUE. Auditors use tick marks as symbols adjacent to the detail in a schedule to indicate the work that has been completed and facilitate communication among auditors.
Step-by-step explanation:
Auditors use tick marks as symbols adjacent to the detail in the body of a schedule to provide an indication to other auditors about the work that has been completed. The tick marks help auditors in understanding the nature and extent of their work and facilitate communication between auditors.
For example, an auditor might use a tick mark in the form of a checkmark (√) to indicate that they have reviewed and verified a particular transaction or item. Another common tick mark is an exclamation mark (!) which can be used to signify a discrepancy or exception that requires further investigation.
Therefore, the statement that auditors use tick marks is true.