Which statement best describes how the pacing of events heightens tension? the slow pace highlights how exhausted the narrator was on her big day. the slow pace gives the narrator time to carefully plot out her next move. the fast pace intensifies the conflict between the narrator and allison. the fast pace increases the narrator’s urgency in learning her lines.

The statement that best describes how the pacing of events heightens tensions is the third one - The fact pace intensifies the conflict between the narrator and Allison.
Generally, the faster the pace, the tensions are heightened because everything is happening so fast. When you are angry, you don't normally talk slowly and quietly, but speak in a quick manner so as to show your emotions.