Explanation:

- Option 1: Unemployment

- Unemployment involves the state when individuals capable and willing to work do not find jobs. While critical, the Bhagwati Committee did not specifically focus on this issue in 1973.

- Option 2: Poverty

- Poverty is a significant problem that involves the lack of financial resources to meet basic living standards.

- Correct Answer: The Bhagwati Committee, led by Professor Jagdish Bhagwati, focused on the issue of poverty in the 1973 report.

- Option 3: Population Growth

- This involves the increase in the number of people in a region or country over time. The committee didn't focus on this issue.

- Option 4: Commerce

- Commerce refers to the activity of buying and selling, especially on a large scale. The Bhagwati Committee's work wasn't centered on this aspect.