Read the sentence below to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. Choose the option with that part as your answer. If there is no error, choose 'D' as your answer. (Ignore the errors of punctuation, if any).
Though senior in age, his father is junior than my father in service.
Though senior in age,
his father is junior than
my father in service.
No error.
Correct answer is B
his father is junior to