I statement is a statement in which you speak your emotions and feelings about something in a nice, and non-rude way. So, having this in mind, I'd rule out A and B, because they are loud and kind of rude, and I'd also rule out D, because it is too short and doesn't really explain anything.
In my opinion, the correct answer is C. I feel I’m not important when you watch TV because I want to tell you about my day.