Two children are participating in a memory research: Heather, a preschooler, and Illeana, a sixth-grader. When the children fail a recall task, the researcher asks each child what she might do to succeed at the task the next time. Heather suggests that she would simply try again; Illeana proposes that she might try to write the items down. The difference in the girls' responses most clearly illustrates an increase in during childhood.

Meta cognition

Explanation:

The understanding of their own thought  process,made each one of them suggest what they thinks will make them succeed.

Meta cognition is the awareness and understanding of one's own thoughts.Its is believed only you can truely understand yourself in many aspect of life.

metacognitve ability

Explanation:

Metacognition is "cognition about cognition", "thinking about thinking", "knowing about knowing", becoming "aware of one's awareness" and higher-order thinking skills.

Metacognitve ability has to do with thebskills for organizing, guiding, and controlling one’s own thinking, actions, and learning processes. It concerns the skills for task orientation, goal setting, planning, a systematical approach, monitoring and evaluating the outcome.

the best answer is b.

hope this : )

its d. you give me brainliest