C. Experts spoke of Nikic in terms of limits rather than possibilities.
Explanation:
In the article, it says "His parents—Nik, a corporate performance trainer, and Patty, a stay-at-home mother—struggled to get their son proper care and attention. They moved him to seven different elementary schools, searching for the right fit. At every turn, experts spoke of Nikic in terms of limits instead of possibilities. “I always felt isolated, left out, excluded,” he says, describing the emotions he felt growing up."