Explanation:

- The statement “Stratification system derives from common values” is associated with Talcott Parsons.

- Parsons viewed social stratification as rooted in shared values and consensus in society.

- Kingsley Davis (option 1) alongside Wilbert Moore, explained stratification through the functionalist perspective, focusing on necessity and societal roles.

- Melvin M. Tumin (option 3) critiqued Davis and Moore, challenging the functional theory of stratification.

- Michael Young (option 4) is known for coining ‘meritocracy,’ not directly linking stratification to common values.

Correct Answer: Option 2 - Talcott Parsons