Multi-choice problem: Continue writing the next sentence in this paragraph:

How to get straight a's in university or college
Prepare.
Make sure you have a lot of notebooks, binders, pencils, pens, erasers, highlighters and so on. You must aim to be organized.

Available options:
[a]. No one likes it if you have a messy dorm room for a very long time. Pack your cell phone with you, so if it rings, you can quickly record what happened and keep it in..
[b]. Make sure there is enough space in your desk for everything you need to do. This could be designated by different wording within your notebook..
[c]. Turn 10 * for your binders , 11 * for your pens and highlighters etc. And get at least 6 different types of pens/highlighters as well..
[d]. Have a pencil case with everything so your pencils don't break in the bottom of your bag, and everything is easy to find. Label your notebooks and try to use the color coding system so you can quickly pull out your green math book if you come in late..
[d].