Answer:
Khai k tha have been making
Two things to keep in mind when you're deciding whether to use formal or informal English are the B) occasion and the audience.
Of course you are going to change the way you talk depending on whether you are speaking to your friends or to your teacher - usually with the teacher you are going to use more formal English.
Occasion is also important - you won't speak in the same manner at a party and a cocktail.
The answer is C. I'm sure
I believe the answer is C.) he is a eager young hero
For he supports his father and mother the best way he can. Being a side kick for his father, eager to become just like him.
So this explains that he was (eager) to become a young hero.