Final answer:
The vestibulocochlear nerve (cranial nerve VIII) is responsible for hearing and balance.
Step-by-step explanation:
The cranial nerve involved in the sense of hearing is the vestibulocochlear nerve. This nerve is also known as cranial nerve VIII. It is responsible for carrying auditory information from the ear to the brain and is essential in the process of hearing. Additionally, the vestibulocochlear nerve plays a role in maintaining balance and body posture through its vestibular component.