which is a dependent clause? during intermission, while we were discussing the performance dodging…

which is a dependent clause? during intermission, while we were discussing the performance dodging frantically, a valet ran through the crowd and into the theater dashing after him, two police officers plowed through the lobby crowd discussing the commotion, we decided it was more exciting than the play
Answer
Brief Explanations:
A dependent clause cannot stand alone as a sentence and often starts with a subordinating conjunction. "while we were discussing the performance" starts with the subordinating - conjunction "while" and cannot stand alone. The other options are either phrases or independent - clause related structures.
Answer:
during intermission, while we were discussing the performance