Which statement best explains the effect of a strong conclusion?

A strong conclusion plays a crucial role in writing by reinforcing the main points discussed in the essay. This restatement helps to remind readers of the key arguments and insights, ensuring that they retain the essential information long after they have finished reading. Additionally, a powerful conclusion is designed to leave a lasting impression on the audience, inspiring them to reflect on the topic or take action based on what they have learned. This impact is vital in reinforcing the overall message of the piece, making it memorable and impactful.

The other options don't align with the purpose of a strong conclusion. Introducing new ideas can confuse readers, as conclusions should synthesize rather than expand upon the material. Simply repeating the introduction does not add value and can create redundancy. Additionally, shifting focus away from the main topic undermines the goal of bringing the discussion to a coherent and impactful close.