Final answer:
The insured's duties in a commercial liability policy include notifying the insurer of claims and assisting with legal processes, but not submitting to a medical exam as that is more relevant to health or life insurance.
Step-by-step explanation:
The question refers to the duties of the insured under a commercial general liability insurance policy in the event of a claim. The insured's duties typically include providing prompt written notice of any claims or suits, furnishing the insurer with necessary legal documents related to the claim, and aiding the insurer in enforcing rights against third parties that may be liable. However, submitting to a medical exam is not generally a duty under a liability policy, as this would be more applicable to health or life insurance policies.