Suppose That a Researcher Presented First Graders and Sixth Graders

Suppose that a researcher presented first graders and sixth graders with a series of line drawings. Each drawing was centred in the middle of a card. The children were told to memorize the drawings. Around the periphery of each card were some extraneous pictures that the children were told to ignore. The first graders were distracted by the peripheral pictures and remembered fewer drawings than the sixth graders, who were able to focus on the drawings and ignore the pictures in the periphery. This example illustrates

A) planfulness.
B) adaptability.
C) propensity.
D) attention deficit disorder.