Which description includes the most vivid details about the character?

In order to answer your question, it would be helpful if you would give additional information. Which descriptions are you considering? Which characters are involved? What is your definition of "vivid"? Did you pass the exam? Are you in the middle of taking it? What's your instructor's name and contact information so s/he can be notified to confiscate your phone? If you are taking this exam outside of a brick and mortar school, does this say something about online courses? Answer to that last one: yes.