Read the following paragraph. Then select the author's purpose in writing the paragraph.

I can't believe I was so rude! Why did I have to say that? I mean, she didn't mean to drop that book on my toe. It hurt so bad that I wasn't thinking. I need to tell her I'm sorry, but I'm so embarrassed. Should I call her? What do I say? Maybe I should write a letter.

A) to inform
B) to persuade
C) to express strong feelings
D) to entertain