Task: Question Answering
Input (English): Question: The average salary of 20 workers in an office is Rs.1900 per month. If the manager's salary is added, the average salary becomes Rs.2000 p.m. What is the manager's annual salary?

 Option A: Rs.24,000

 Option B: Rs.25,200

 Option C: Rs.45,600

 Option D: None of these

 Option E: Cannot be determined
Output (English): Option D