How to answer AQA A-Level sociology paper 2?

For Questions that ask you to evaluate a certain persepectives explanation (for example, a 20 marker : evaluate functionalist/ femininst/ marxist explanations of the role of the family in society today), would you do 3 paras on the perspective, say functionalism, and evalute those 3 paras with feminism and marxism? or would you do 3 seperate paragraphs on functionalism, feminism and marxism and evaluate them in their own way?