I would say the author uses irony in this passage that remembering his mother makes him not happy but miserable which may be the opposite of what is expected but he would rather suffer this than be happy in forgetting her as this latter feeling would be expected to make him sad.
Well noticed I need a little more information than that for that to know the anwser
Since other choices are useless in my opinion, it is "exaggeration"
I would say 'A' Incredulous.
Hope i helped!
Isabel Burnell wanted to impress her classmates with the new doll's house<span>. Aunt Beryl did not consider the feelings of others. Lady Macbeth smears the sleeping groom with King Duncan's blood. - hope this helps</span>
