Final answer:
The medulla oblongata relays auditory information to the inferior colliculi. The inferior colliculi process the auditory signals and send information to the thalamus, which in turn relays it to the auditory cortex for conscious perception.
Step-by-step explanation:
The medulla oblongata relays auditory information to the inferior colliculi. The inferior colliculus, part of the midbrain tectum, is involved in the brain stem auditory pathway. Neurons from the inferior colliculus project to the thalamus, sending auditory information to the auditory cortex for conscious sound perception. Moreover, the superior colliculi, also part of the midbrain tectum, coordinates both visual and auditory information.
In response to the question, the medulla oblongata relays auditory information primarily to the inferior colliculi (option 4). This area is responsible for processing and routing auditory signals within the brain's auditory pathway, contributing to functions like sound localization. The inferior colliculi then forward this information to other brain structures such as the thalamus for further processing before reaching the auditory cortex.