Spot an error in the given sentence. (A)One of my neighbour /(B)is both…

Corrected sentence: One of my neighbours is both a musician and a reputed engineer.

• First part: Change 'neighbour' to 'neighbours' because the phrase 'one of' must be followed by a plural noun.

• Second part: Insert the article 'a' before 'musician' since singular countable nouns require an article ('a musician').

• Third part: Insert the article 'a' before 'reputed engineer' ('a reputed engineer') and maintain parallel structure: 'a musician and a reputed engineer.'

• Therefore, the sentence has errors in the first, second, and third parts; the option claiming no error is incorrect.