Question

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

Explanation:

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, making it a dependent clause. The other options are phrases or independent - clause - like structures without proper subordinating conjunctions to make them dependent.

Answer:

during intermission, while we were discussing the performance