Captain says I'm the most brave person one this ship he says im the most determined man hear but the only resone why i am is because i want to see you all again, it is cold and it wont stop snowing the ice in starting to become a problem, this might be my last letter you ever read, Captain says we might not make it back but i cant think about it i have to stay strong i know that is what you would want, but if i dont i want you to know i love you.
You didn't provide the excerpt but if it's the one I found online, I think A would make the most sense as the passage is primairly based around his own actions. If not A, then D would be second choice I think.