Which of the following children is most likely to accurately evaluate his or her own memory?

A) A child who has developed metamemory
B) A boy
C) A 5-year-old
D) A girl

Metamemory refers to an individual's knowledge about their own memory capabilities and strategies, which allows for more accurate self-evaluation of memory. This ability develops with age and cognitive maturation, making a child who has developed metamemory more likely to accurately evaluate his or her own memory than children who have not developed this understanding, regardless of gender or a specific age.