Explanation:

- Option 1: Nehru Committee

- The Nehru Committee, formed in 1928, was for drafting a constitution for India, not for setting poverty norms.

- Option 2: Tendulkar Committee

- The Tendulkar Committee, formed in 2005, redefined the poverty line to include consumption expenditure rather than just calorific intake, and is known for setting poverty norms based on minimum calories.

- Option 3: Both a and b

- This option is incorrect as the Nehru Committee did not deal with poverty lines.

- Option 4: None of these

- Incorrect because the Tendulkar Committee is relevant to the formation of poverty line norms.

- Correct Answer: Option 2 - Tendulkar Committee

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