Which selection from the passage best restates the answer to Part A?A“How much effort should we expend on something? We have onl
y so much time and energy in the day.” ( Paragraph 2)B“In particular, how do young children, who are constantly encountering new situations, decide how hard to try?” ( Paragraph 3)C“Even a 15-month-old infant can outperform a high-level computer in such tasks.” ( Paragraph 6)D“Babies attentively watch those around them, and use that information to guide their own effortful behavior.” ( Paragraph 14)