i think its a. whenever you end a piece of dialogue, you put a comma.
In my mind, his tone is arrogant. but I'm sure that it's meant to be motivational.
so the answer is D
context, the words or sentences around the unknown word.
Being confident when I feel like I'm not working hard enough, and when I feel like obstacles are in my way.
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
