Paco's Test Scores and Study Skills in Math Have Vastly

Paco's test scores and study skills in math have vastly improved over the last nine weeks. He seems to take more interest in his learning. What role might his parents' have played in Paco's enhanced motivation?

A) They have left him alone so he can focus more on his schoolwork.
B) They have cleared a spot at the table so he can do his work.
C) They have maximally challenged Paco to establish high support.
D) They have taken an interest in his math assignments and teacher correspondence, so they can provide appropriate support and challenge.