Final answer:
The best last-minute advice for a friend's exam is to get a good night's sleep and ensure they understand all concepts. Staying up all night or skipping meals before the exam can negatively affect performance. Organization and relaxation techniques can also aid in successful test-taking.
Step-by-step explanation:
The best advice to offer a friend who has a big exam tomorrow would be b) Studying consistently over time. However, given it's the day before the exam, the next best advice would be to get a good night's sleep. This ensures the mind is well-rested and can perform optimally during the test. It's important not to stay up all night before the test as this can lead to diminished mental clarity. Furthermore, avoiding a big meal right before the exam can prevent sleepiness and help maintain clear thinking. When studying, understand all of the concepts presented and organize information effectively, possibly through methods like using flashcards. Finally, during the test, take deep breaths and try to relax to best apply your knowledge.