Explanation:

Let’s break this down:

- Option 1: 2400

This is the standard set by the Ministry of Labour and Employment. They recommend a daily calorie intake of 2400 for setting minimum wages, particularly for an adult male worker in rural areas. This number comes from the idea that a person needs this amount for basic health and productive work.

- Option 2: 2800

This is too high compared to standard recommendations. There isn’t a policy guideline pegging minimum wages to this calorie level.

- Option 3: 3000

Again, this is way above what’s in the official guidelines. You won’t find any Indian government document tying minimum wages to a 3000-calorie requirement.

- Option 4: 1500

That’s too low. It’s undernourishment territory. Definitely not the basis for any policy on wages.

- Option 5: 2000

This number does sometimes come up in nutrition advice for an average adult, especially for urban or less physically demanding work. But when it comes to minimum wage calculations, 2400 is the benchmark.