Answer:
The correct answer is (D) He relates the changes in M. Hamel's attire and approach to the students.
Step-by-step explanation:
Option (D) suggests that the author has observed changes in M. Hamel's appearance and behavior, which could be interpreted as a sign that he is taking new pride in his occupation and heritage. Option (A) mentions M. Hamel's iron ruler, but this does not necessarily provide evidence of a change in his attitude or pride. Option (B) describes M. Hamel's physical actions, but again, this does not necessarily provide evidence of a change in his attitude or pride. Option (C) mentions the tone of M. Hamel's voice, but this does not necessarily provide evidence of a change in his attitude or pride.