Since we are talking about pace, the words that seem to best reveal it are "hustled" and "hasty". The character we're reading about in this excerpt, Jenna, seems to be in a hurry, trying to get to class at the same time she's trying to study and memorize what she thinks will be on her test.
"To hustle" means to hurriedly move toward a certain direction. "Hasty" is the quality of being done urgently and swiftly.
The purpose of sharing what you have read with others is to better understand what you read and to reflect better on your opinions with others. So I’m this case, it would be number 3