I would think you would use repetition
I would be said that that the letter might reveal he is compassionate. (option D) this might be seen especially in the sentence "<span>which allowed me no room for hesitation", it seems that he was following his heart to fulfill its request, so he could not hesitate, he obeyed immediately. </span>
Kovalf was a committee-man. He had been one for two years and he couldn't take that out of his own head. This only shows how much the Russian society used to value their titles back then and this might actually be true today.
Kovalf could never forget that he was once a committee-man, therefore to boost his own importance, even to himself, he started calling himself "Major".
C because sleeping is something one doesn't control it happens naturally
