Choice A is correct because it shows what the animations are trying to accomplish. By writing "how life like are they?" it shows that they are trying to achieve the goal of creating animations more life like. If the correct answer was C, the underlined sentence would be written more like " Is creating life like animation beneficial? A tip I learned from Abdulqareeb is that, its only necessary to read the underline sentence to answer the question. Sometimes reading the whole paragraph can trick you then aid you in answering the question.