This is a pivotal moment in Doctor Faustus because it shows that : Faustus learns that death is inevitable
Pivotal moment is an important point that marks the change in direction. It is the center or a story and everything that relates to the topic turns or depends on that specific point.
The theme that is addressed in both "We wear the mask" and "A man said to the universe" is how humans can be helpless in the face of external forces.
The answer would be B. Easy Respect
I hope this helps you :)
D. Run-on Sentence
The other options wouldn't make any sense except maybe "A", but a fragment is not completed whereas a Run-on would be completed, just lacking punctuation.