A 4-year-old child insists he has more money with a nickel than his father has with a dime.
What is this perception, as described in Piaget's theory?

Choice A rationale:
While it's important to provide appropriate food quantities for children, advising that food quantities must be carefully measured to avoid overfeeding may be overly restrictive. Children's appetites can vary, and strict measurements may not be necessary. Instead, it's essential to offer a balanced diet with a variety of foods and let the child's hunger cues guide their intake. Overemphasis on precise measurements may lead to unnecessary stress for both parents and children.
Choice B rationale:
Using 1 tablespoon of each food for each year of age as a guideline is a practical and straightforward approach to portion control for toddlers. It provides a general guideline that can help parents ensure that their child is receiving an appropriate amount of food for their age and developmental stage. This approach is flexible and easy for parents to follow. It also encourages a balanced diet, as it implies that a child should receive a variety of foods in appropriate quantities.
Choice C rationale:
Stating that a toddler should eat three balanced meals and snacks are not necessary oversimplifies the feeding recommendations. While balanced meals are important, toddlers have varying energy needs, and some may require snacks to maintain their energy levels. Snacks can be an essential part of a toddler's diet, especially if there is a long gap between meals. Therefore, it's important to consider individual needs and not dismiss snacks outright.
Choice D rationale:
Serving sizes should not exceed 1 teaspoon of each type of food is overly restrictive and may not provide toddlers with the necessary nutrition. While it's crucial to introduce foods in appropriate portions, limiting serving sizes to just one teaspoon may not meet the nutritional needs of a growing child. This approach may lead to underfeeding and nutrient deficiencies, which is not advisable for healthy development. A more balanced and flexible guideline, such as the one provided in choice B, is a better recommendation.

Choice A rationale:

Speaking in 2-word sentences is not a developmental milestone expected in a 9-month-old infant. Language development typically involves babbling, imitating sounds, and understanding simple commands at this age.

Choice B rationale:

Beginning to use a spoon rather sloppily is also not a typical milestone for a 9-month-old. Infants at this age are just starting to explore solid foods and are more likely to use their hands for self-feeding.

Choice C rationale:

Creeping along the floor is an appropriate developmental milestone for a 9-month-old. This crawling or creeping motion is a precursor to crawling and walking. It's a sign of motor development and exploration.

Choice D rationale:

Grasping objects with a palmar grasp is a skill that infants typically develop at a much younger age, usually within the first few months of life. By 9 months, they should have progressed to a more refined pincer grasp.