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.
For the answer to the question above, I believe the answer is <span>A.Gutenberg's printing press made newspapers very popular. Because they were so popular, they were printed daily.
I hope my answer helped you. Have a nice day!</span>
The 2nd choice is the most engaging
