The answer is D. Summer.
It wouldn’t be the others because days, months and holidays are always capitalised since they are proper nouns.
Yes because Alaska still runs on oil. Alaska's north slope has responsibly produced more than 18 billion barrels of oil since the discovert of the prodhoe bay oil field.
A. Fiction and non-fiction can have a persuasive purpose.
It doesn't just have to be one genre, you just have to make it interesting, to grab the readers attention. That's basically what persuasive means.