Which of the Following Children Are Classified as Gifted and Talented

Which of the following children are classified as gifted and talented?

A) Sam, who learned to play the violin when he was three, but quickly gave it up in favor of spending more time with his family rather than practicing
B) Elia, who as a toddler loved to do simple math using her toys and who is now, at the age of 10, taking advanced calculus classes at the university
C) Jacob, who has a knack for drawing and painting but also enjoys sports and other athletic endeavors
D) Samantha, who does well in school but does not stand out in any particular subject area