Which of the following institutions is involved in interest articulation?

Correct option is B

The correct answer is b) Political parties.

Detailed Explanation of Interest Articulation
Interest articulation is a core function in political systems, referring to the process by which individuals and groups express their needs, demands, and grievances to the government or political authorities. It is the first step in converting societal wants into public policy.

Political Parties are highly involved in this process. While they are also major players in interest aggregation (combining demands into broad platforms), they facilitate articulation by:

Providing platforms (rallies, manifestos, public debates) for citizens to voice their concerns.

Having local and regional structures that funnel demands from the grassroots level up to the central government.

Competing with one another to identify and speak on behalf of specific societal interests.