Hello.
The answer is: A. precocious
Precocious is when a child developes abilities at an early age.
It wouldnt be B or D because those would be the oppsite of a student doing well or going above. Spontaneous is when you do something on impulse or unplanned in the writing it doesnt say the reason why she does it, it just be to impress someone. So the best answer would be precocious.
Have a nice day