There are choices for this question namely:
a. Left hemisphere
b. Right hemisphere
c. Hypothalamus
d. Brain stem
The correct answer is "left hemisphere". In the left hemisphere, specifically in the temporal lobe, the primary auditory cortex is located. In the primary auditory cortex, there are areas responsible for language and understanding, the Broca's area and the Wernicke's area responsively. If the patient cannot repeat phrases, then most probably the arcuate fasciculus is also damaged.