In the neo-Piagetian scheme of self-concept development, the third stage of development, which begins around 7 or 8 years of age, involves the ability to form A) representational systems.
B) class inclusion.
C) sensorimotor schemes.
D) transitional inferences.

A) representational systems.

Explanation:

Representational systems is a term that describes a form of a neo-Piagetian scheme of self-concept development that deals with how the human mind processes and stores information. In other words, it illustrates how the experience is depicted in the mind in sensorial terms. for example, kids integrate into their self-image the developing knowledge of how others observe them

However, given that, children's self-definition usually changes between the ages of 5 and 7, indicating the growth of self-concept. Neo-Piagetian investigation affirms that the systems of representations begin at age 7 and above, which involves particular features of the self-concept in various ways, by reducing the feeling of all or nothing, this, the self-descriptions will be more neutralized.

Hence, the right answer is option A, Representational Systems

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the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.