The correct answer is C. Neighbour.

The word "neighbour" is an adjective and noun that means "a person who lives near another person." It is derived from the Old English word "neahgebur," which means "one who lives near." The word "neighbour" is spelled with two "b"s and one "u."

The other options are incorrect because they are not spelled correctly. The word "Neihbour" is missing an "r". The word "Neighber" is missing an "u". The word "Neibur" is missing a "b" and an "r".