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Ya this seems correct :P </em></u></h2><h2><u><em>
Hope it helps! </em></u></h2><h2><u><em>
Don't mind the decor... :P i got bored so i kinda messed with it-</em></u></h2>
<span>A. They were sweethearts. </span>
<span>Lightning rods are a necessity for radio towers and skyscrapers.
This is the topic sentence, because it's clear from this that the paragraph will discuss lightning rods and why they are necessary for radio towers and skyscrapers to have. It is broad enough to open the paragraph but also specific enough to give preview and some detail. </span>
Answer:
Knowing an author's background can often provide insight into someone's writing that you might not otherwise know.
Explanation:
A great example is Ian Fleming, who worked in the Spy department of the government before he created his well known character James Bond. Another example would be Agatha Christie, who worked as a pharmacist before writing detective novels about people getting poisoned.
Hope this helps!
Please add the rest of the question, so as I can answer it.