The question requires matching concepts from List - I with the thinkers from List - II.

Matching Concepts to Thinkers

The solution involves identifying the correct association between each concept and its corresponding philosopher:

• Tacit Consent: This concept, suggesting implied agreement through actions like benefiting from societal structures, is central to John Locke's political theory. Thus, (a) matches with (iii).
• Self-Regarding and Other-Regarding Action: Jeremy Bentham, a pioneer of utilitarianism, differentiated actions based on their scope of impact – whether primarily affecting the self or others. Thus, (b) matches with (iv).
• Negative and Positive Liberty: Isaiah Berlin famously articulated the distinction between negative liberty (freedom from interference) and positive liberty (freedom to act and achieve self-realization). Thus, (c) matches with (ii).
• Well-Ordered Society: John Rawls extensively explored the notion of a 'well-ordered society' in his influential work on justice, defining it as a society governed by publicly recognized principles of justice. Thus, (d) matches with (i).

Final Concept-Thinker Matches

Based on the reasoning above, the correct pairings are:

• (a) Tacit consent → (iii) Locke
• (b) Self regarding and other regarding action → (iv) Bentham
• (c) Negative and positive liberty → (ii) Berlin
• (d) Well ordered society → (i) Rawls

This set of matches corresponds to the option where (a) is paired with (iii), (b) with (iv), (c) with (ii), and (d) with (i).