In linguistics - expository writing, a topic sentence is a sentence that expresses the main idea of the paragraph in which it occurs. In this case, it's sentences number 1: Overall, my time spent working as a lifeguard has changed my life and shaped my future. It introduces the topic and allows us to have an idea about what the text will be about.
Answer: Javed restates the topic in sentence 1) "Overall, my time spent working as a lifeguard has changed my life and shaped my future".
Explanation: The conclusion of an essay must restate the thesis, that is to say that<u> it must repeat the main idea or point of the entire piece of writing</u>.<u> It is the first sentence of the conclusion the one that usually restates the topic </u>and the first sentence of the conclusion provided is no exception. In that way, sentence 1) "Overall, my time spent working as a lifeguard has changed my life and shaped my future" <u>is the one that repeats the thesis</u>,<u> </u>which refers to the impact that Javed's job as a lifeguard has had in his life.
