Pls help im very desperate i'll defenitely give braniliest :c

Im the following sentence, what is the complete subject . an old friend of mine is in the hospital

Select the correct answer. what is implied in the last line of this excerpt from mark twain's "the £1,000,000 bank-note"? as i approached the house my excitement began to abate, for all was quiet there, which made me feel pretty sure the blunder was not discovered yet. i rang. the same servant appeared. i asked for those gentlemen. "they are gone." this in the lofty, cold way of that fellow's tribe. a. that the servant hails from a different country and most likely migrated to england for employment b. that the servants in the homes of wealthy londoners consider themselves to be better than everyone else c. that the servant is unhappy with his employers and treats all his guests in a rude fashion d. that most servants in london have to live in poor conditions and frequently suffer from cold e. that the servants in london are prohibited from being friendly with th

What did mark twain contribute to the history of the novel? select all that apply.