Q. The staff co-operated . . . . . . . . the management to increase productivity.
✅ Correct Answer: (A)
with
Explanation: 'Co-operate with' means 'to act or work with another or others'. Hence it makes the sentence meaningful.
Explanation by: Team MCQ Buddy
'Co-operate with' means 'to act or work with another or others'. Hence it makes the sentence meaningful.