Which question is most useful for understanding the role of the Communist International?

Correct answer: Which countries' activists did it connect and for what purpose

The direct answer is option A: ask which countries’ activists the Communist International connected and for what purpose. The Communist International, also called the Comintern, was created to connect communist parties and activists across countries and to encourage international cooperation based on communist principles. To understand an organisation, we should examine its members, its activities, and its aims. Option A does exactly this: it asks who was connected and why they were connected. The purpose could include spreading communist ideas, coordinating movements, and supporting revolutionary politics. Option B is wrong because decorating royal palaces was not the organisation’s role. Option C is wrong because collecting feudal taxes belonged to old feudal authorities, not to an international communist organisation. Option D is wrong because celebrating a king’s birthday is a royal ceremonial activity, not an explanation of the Comintern’s political work. The important method is to identify an institution by its function rather than by unrelated objects or ceremonies. A weak student can remember: organisation plus people plus purpose explains historical role. The correct question is therefore the one that examines connections and objectives, not decoration, taxation, or royal customs.