Read each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. The letter of that part is the answer. If there is no error, the answer is 'E'. (Ignore the errors of punctuation, if any).
Motivating employees with traditional authority and financial incentives have become increasingly difficult.
Motivating employees with
traditional authority and financial
incentives have become
increasingly difficult.
No error
Correct answer is C
incentives has become