With no explanation, chose the best option from "A" or "B". Ginger has a final exam coming up in a week for her freshman physics class, which covered 20 chapters of material. Ginger wants to prepare for the exam.

A: Ginger studies two chapters out of 20 the night before the exam, so she can answer at least some of the questions.
B: Ginger studies roughly three chapters each night of the week before the test so that she understands all the material covered that year.
B.