Which sentence is correct? A. Mr. Harris was our city's-mayor-elect when he built his house here. B. Mr. Harris was our city's mayor-elect when he built his house here. C. Mr. Harris was our city's mayor elect when he built his house here.

The correct answer is B. Mayor-elect is a hyphened word to identify that he has been elected as the mayor but has not taken office or been sworn in to the office. City's is the possessive to indicate that Mr. Harris is the city's newly elected mayor.

I'm guessing it's C but I can ask my English teacher tomorrow