Answer:
Definition!
Explanation:
Aptitude means the capability, ability, innate or acquired capacity to do something. It means you are a natural at it, you do that thing well, you have talent. 
So, in this probelm, when they are explaining on how she has a natural ability to do math, it is a definition because aptidue means having a natural ability or talent. 
If you enjoyed this anwser, a rating and a Thanks would be much appreciated!
Have a amazing day!
 
        
             
        
        
        
J the last one is correct
 
        
             
        
        
        
Can you shorten the question a little bit shorter please if you can.
        
             
        
        
        
The answer is A. teiresias's prophecy makes me nervous. i dont know if he's right or wrong. hope this help    
        
             
        
        
        
There are struggles along the way