No set rule exhausts to determine how many sentences should be in a paragraph true or false

For english i have to find 4 errors in each diary post

Select the quote that best shows character. “why should he disturb my peace? ” “excuse me, sir, i am not accustomed to listen to such expressions or to such a tone of voice. i want to hear no more.” “the dear lady may well have taken me for a brigand.” “then you won’t pay me now? eh? ”

Which of these novels is considered an important precursor to science fiction