。
Did I answer the question, I wonder?
Literal
I [topic-は] question [to-に] answered [wonder-でしょうか].
~でしょうか used self-reflectively: the speaker isn't asking the listener but wondering aloud whether their own answer was adequate. This self-directed use of でしょうか is common in presentations and Q&A sessions — a polite way to check if one has been responsive.