remorseful is your best answer
"remorseful" means "filled with remorse, sorry". Even though it is not said, it is implied that he is sorry, because he thinks back to the history of how his mom ended up like that.
hope this helps
Present tense is what is happening in the moment or right now.
For example: I am reading a book.
This sentence shows that currently in the moment, the person was reading a book.
Another example: The time is 3:00
If youre taking about a book you can use "the reader"
your answer is B i love this subject and i am good at i tthanks!!