Which one of the following questions would be the focus of psychologists who use the information-processing perspective to understand children's cognitive development?

A) How does the efficient use of short-term memory capacity change with age?
B) How does one child's cognitive ability compare to, or differ from, the average cognitive abilities of other children of the same age?
C) What cognitive structures are common to all children?
D) How do children's developing sensory capabilities and improving motor skills support their cognitive development?

A