If a Paragraph Is Presenting an Argument, Will Every Idea

If a paragraph is presenting an argument, will every idea in that paragraph be important to the argument?

A) Yes, and that is why it is important to consider each idea carefully.
B) Yes, because if there are other ideas in the paragraph, then it isn't really making an argument.
C) No, because usually only the first and last sentences are important.
D) No, because no paragraph is completely focused on the argument it's making.
E) No, and that is one reason why arguments must be distilled.