Final answer:
The auditory canal, also known as the external acoustic meatus, is a feature associated with the temporal bone of the skull. The correct option is d.
Step-by-step explanation:
The auditory canal is a passageway that is associated with the ear, and it travels through the temporal bone. Specifically, the external acoustic meatus, commonly known as the ear canal, is the large opening on the lateral side of the skull that is part of the temporal bone. Within the temporal bone's structure, there are several important landmarks to be aware of, such as the mastoid process, which serves as an attachment site for muscles and can be felt just behind your earlobe, and the styloid process. Furthermore, the zygomatic process of the temporal bone forms the posterior portion of the zygomatic arch, which is important in facial structure and muscle attachment relevant to chewing. However, for the auditory canal or ear canal, it is the temporal bone that encloses this critical feature of the auditory system.