I believe the answer is A... Loneliness, because he is lonely walking home from the pub
I think it's B... hope I'm right and i hope it helped. :)
It something that tests your knowledge it's like a quiz
Mental power is important because it helps you become who you are and helps you grow as a person. also having mental power could help you in the future and also teach you lessons and a lot about life. it gets stronger and stronger everyday as you go on.
D is the correct answer to this question i think!