<span> that Arthur was killing them all?</span>
yes. That is True. A buisness letter is formal, and uses profession writing and formatting. A friendly letter is playful, and does not need to be formal, and respectful. (In writing terms) A buisness letter is professional and serious. It is True.
~Silver
Answer:
the author's opinion
Explanation:
In writing an argument, the author attempts to pass across his/her opinion as persuasively as possible.
An argument is a written presentation of the authors' opinion backed up by evidences, facts and figures and arranged in a coherent manner.
The authors job is to evaluate the authors opinion while eschewing any personal bias which may color accurate judgement of the validity of the authors opinion.