As he is listening to a video on his computer, Otto begins thinking about how his brain is processing the sounds that come from the short clip. He opens his psychology book to the chapter on sensation and perception, and is surprised to find that the auditory cortex, which allows him to make sense of the various sound waves, is located in the .
a. temporal lobe of the cortex
b. fusiform sound area
c. prefrontal cortex and limbic system
d. ventromedial hypothalamus

a) temporal lobe of the cortex

Explanation:

Auditory cortex is the section of temporal lobe that process auditory  information into brain through hearing for further operation.It can perform high level hearing related function.

According to the question,Otto will find that temporal lobe of cortex is the section that consist auditory cortex in auditory system for processing heard information to brain and thus, his brain can listen sound of the video.  

Other options are incorrect because fusiform sound areas, prefrontal cortex with limbic system and ventromedical hypothalamus is not the section which contains auditory cortex of making sense of sound. Thus, the correct option is option(a).

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i got 3,4 and 5 as an answer