I would say the answer is B) Thick socks. He says "Keep it like a warm coat when winter comes to cover you, or like a pair of thick socks." He is comparing the poem to thick socks. He is saying keep it when you need encouragment.
~Deceptiøn
<span> The figure of speech simile involves comparison of one thing with another thing of a different kind.</span><span>
The following excerpt from "The Life You Save May be Your Own" contains an example of a simile : After a few minutes there was a guffawing peal of thunder from behind and fantastic raindrops, like tin-can tops, crashed over the rear of Mr. Shif</span>
John Proctor has a change of heart about confessing because he believed everything that had happened went against everything he believed in. <span>John Proctor was an elderly man of 60 years of age when accused, tried, and hanged for practicing witchcraft in 1692. Hope this helps.</span>