Final answer:
The three areas of the brain that show the highest levels of activation due to reading are the inferior frontal lobes, the temporal-parietal junction, and the occipital-temporal junction.
Step-by-step explanation:
The three areas of the brain that show the highest levels of activation due to reading are the inferior frontal lobes, the temporal-parietal junction, and the occipital-temporal junction. These areas are involved in various aspects of language processing, including comprehension and visual word recognition.