The Central Bank Monetary policy instrument by which it buys…

The Central Bank Monetary policy instrument by which it buys and sells securities is called

  1. bank rate
  2. cash reserve ratio
  3. open market operation ✓
  4. bank credit

Explanation

This answer correctly describes the business or trade concept. Commerce deals with buying, selling, and business operations.

The other options relate to different aspects of business or trade. They aren’t the best answer here.

Understanding this helps you grasp how businesses operate and how trade happens.