I usually have 4 paragraphs just to be safe. (As taught by our teacher)A01A03A03ConclusionA01 would contain all your key points and description of the question. My 2 middle A03 paragraphs contains strengths and weaknesses (of it says evaluate) and application. So that will be 2 weaknesses, 1 strength, 1 application. The last paragraph would contain your conclusion but don't inject new ideas. Hope this helps!