I WILL MARK BRAINLIEST JUST CAN ANYONE PLEASE HELP ME WITH THIS

Choose the letter of the sentence in which the word is incorrect. however good the intentions, ethenasia is extremely controversial. the lawyers strong statement supporting euthanasia won the sympathy of the jury. her euthanasia for sailing led to a year long yachting trip.

My cat and my dog like best friends

What is implied in this sentence from mark twain's "the £1,000,000 bank-note"? i was puzzled, and wanted to discuss the matter a little further, but they didn't; so i took my leave, feeling hurt and insulted to be made the butt of what was apparently some kind of a practical joke, and yet obliged to put up with it, not being in circumstances to resent affronts from rich and strong folk.