The term 'audience' refers to the readers a writer intends to reach.
<u>In the writing process, the term 'audience' makes reference to the people the author is writing for</u>. A writer must take his/her audience into account and identify it clearly during the writing process because it is<u> the audience the one that determines the content and the tone of that piece of writing.</u> Moreover, an author's language and his/her word choice are also determined by the audience.
The answer is c. He was tired and it was late; it had been a long day. The semi-colon helps distinguish the two separate parts. The part where it says "it had been a long day" doesn't make sense if added by a comma.
