Which of the Following Is an Example of a Complete

Which of the following is an example of a complete perception check?

A) "I wonder whether something is bothering you or whether you're just feeling quiet. What's up?
B) "You said you really liked the job I did, but there was something about your voice that made me think you did not like it. Maybe it's just my imagination."
C) "You haven't dropped by lately, and I'm not sure if it's because of me. Is anything the matter?"
D) "You didn't call me back after we had that argument. I wasn't sure if you were busy or if you were upset with me. Why didn't you call?"