Answer:
7
Explanation:
The question can be answered using 4 stages of congnitive development developed by Piagets's theory.
Sensorimotor stage: birth to 2 years of age
Preoperational stage: 2 to 7 years of age
Concrete operational stage: 7 to 11 years of age, at this stage children start to think with rationality. Since Carter is able to differentiate between peas and vegetable and also able to count their number and then decide which number is greater it indicates that she is at least 7 years of age
Formal operational stage: ages 12 and more