Answer:
d) damage to the brain's frontal lobes could alter personality and behavior
Explanation:
When Phineas Gage got that rod shot through his frontal lobe and miraculously survived he changed as a person, he became a kind of walking Psychological phenomenon in the sense that he showed that damage to the frontal lobe would alter the way a person acts and the way they go about themselves. It was really the first time that we, humans I mean, were able to study the way the brain works.