Which of the Following Is a Beneficial Question/statement to Address

Which of the following is a beneficial question/statement to address in supervision?

A) My clients are great, and I don't have any questions.
B) I totally blanked and couldn't think of a question to ask my client. I am incompetent and shouldn't be working in this field.
C) I felt very uncomfortable when the client said that her partner hit her child. I wonder what led to my discomfort.
D) My client didn't show up for session for the third time in a row, but it's okay. I'll figure something out on my own.