Answer:The most effective approach for maximizing learning and retention when preparing for an exam is to spread out the study sessions over time. This approach is known as distributed practice or spaced repetition, and it is supported by extensive research in the field of cognitive psychology.
So, the best option for Rin is:
b. Spread her study: 1 hour a day for 5 of the days and take 2 days off in between study days.
This approach allows Rin to review the material repeatedly over several days, which enhances long-term retention and understanding. Cramming (option e) or studying right before the exam (option a) may lead to short-term memorization but is less effective for long-term learning and understanding.