If the letter you are referring to is the one you get when you have your credit card account or bill delivered to your home, then the best answer would be most likely the second one. The letter provides the recipient information about the condition of his own bank account.
Yes it is. i hope this helped. :)
The technique that the poet use to communicate the speakers critical attitude towards war in the story is letter B. Kaspar repeatedly refers to the famous batle but admits that he cannot recall why it was fought. I hope you are satisfied with my answer.