Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to study outside [title] Gather everything you need. [step] Before you head out into the sun, grab everything you need for a study session of decent length. You don't want to have to head back inside because you forgot something.

Ending1: Plus you don't need to read for too long, or you might find you need to repeat it. Make sure you have everything you need on hand before you go out. Ending2: More importantly than that, have some basic stuff to stock up on. This will include : [substeps] Vitamin/mineral oil plus 2 liters (1 lb) of water a food thermometer a band-aid. Ending3: Gather clothing and padding so you can pay attention while you study. You don't want to look like a lackluster loser. Ending4: [substeps] If you'll be reading, it's a good idea to load several e-books onto the same device. This makes your homework more portable, and ensures you don't run out of things to do.

Answer format: ending1/ending2/ending3/ending4