The correct answer is C.
In his article, Dr. Carol Dweck explains that there are two types of mindsets: the Growth Mindset, in which children seek to improve and are excited to gain new knoledge; and the Fixed Mindset, in which children feel too stressed when pressented with a tast they do not know how to carry out, so they simply avoid them.
Dweck argues that those who have a Growth Mindset tend to have better grades and do better academically because they are always pushing themselves to improve and learn new skills.