<span> A & P is an example of postmodernism. In the story, the main character with the name Sammy left his work without realizing how it will affect his parents. He only has self-concern that leads to his personal decision. He appears to have a<span> mindset more favor to his personal gain compared to have a systematized movement. Sammy is an example of postmodernist because he did not try to refine his mind about what is wrong or right. He asserted individualism and his system place is lost and continue to be unsure on his next step.</span></span>
The given statement is an example of a phrase, specifically, a participial phrase. The element that is necessary to complete the sentence is an independent clause. A participial phrase consists of words with the -ing or -en form plus its modifiers. This kind of phrase always functions as an adjective. The phrase "Beginning in the fall of 1957" is describing a certain noun, which is found in the independent clause.
The best answer would be Letter B - to entertain.
The author merely would like to provide amusement to the readers at his expense. It certainly does not persuade, explain, nor inform anything since it states - <span>But why bother with the descriptions; you’ve probably already grasped the idea!</span> - which could be taken as a witticism.