Answer:
One way you could be a better student, or human-being in general is to wear your mask at all times, aside from eating, of course. The other way, which you should be doing both, is to social distance as much as possible. If you do, however come in contact with people or objects, wash your hands thoroughly with soap and water.
You can look at the words in front and behind it, because they refer to this big word. You may find a synonym of the word or a close reference. So for example in this sentence: I was excited and ambitious to learn about cars today. So this is a easy example. You can use exited to define ambitious if you dont know what ambitious means.
The answer is (A). I'm not a genius, but if there are smart things you can do (B,C,D) and then A is generic, the bad wording and lack of quotation, then that isn't recommended