Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs corrections in each of the following questions from 26 to 28.The main cause of the strike was the

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs corrections in each of the following questions from 26 to 28.

The main cause of the strike was the management’s refusal to give further consideration to the question of pay differences.