Please choose the correct ending to complete the given sentence: Youth: [header] How to study during engineering so that you pass in exams [title] Work closely with your advisor to balance your course load. [step] If you are planning to take 12 course credits, make sure they aren't all engineering courses. Give your brain a break from math by adding a humanities course to the mix.

Ending1: If your professor is the best advisor, you don't need to cram for the best tech labs. [substeps] Do a few extra minutes to check out the great engineering labs in your area to see if you need to study a little harder or if you're a lucky prospect for college. Ending2: [substeps] If you don't have a good advisor, try to find someone else. A secret-based course might be preferable, as it will hold better practice and more responsibility than practical courses. Ending3: Your advisor can help you to balance your schedule between engineering and non-engineering courses. [title] Understand how much time you'll need to spend studying. Ending4: [title] Take biology and anatomy courses if your undergraduate degree requires it. [step] These courses can help you gain advanced skills in math.

Answer format: ending1/ending2/ending3/ending4