Before completing this discussion, review Chapter 5 of your text as well as the Piagets Concrete Operational Stage Revisited (Links to an external site.)Links to an external site. video. You may also want to review the following recommended resources: Piagets Enduring Contribution to Developmental Psychology, On Major Developments in Preschoolers Imagination, Lev Semyonovich Vygotsky (1896-1934) (Links to an external site.)Links to an external site., and Jean Piaget (1896-1980) (Links to an external site.)Links to an external site. articles, After examining the research in human development, choose and complete one of the following options:Option A: Piagets theory on cognitive development has contributed a unique perspective to our understanding of how children think, reason, and solve problems. Examine and identify the main tenets of Piagets theory of cognitive development (i.e., schema, assimilation, and accommodation) describing them in your own words. Examine the cognitive factors Piaget presents in relation to human development. Briefly identify and describe his stages of cognitive development by illustrating the cognitive tasks that infants, children, or young adults are capable (or not capable) of performing. Alternatively, instead of describing the stages, you may create a chart in which the abilities that define cognitive development in Piagets theory are plotted against the age at which they are acquired. Identify at least one aspect of Piagets theory that has been criticized and mention the evidence upon which this criticism is based. Option B: Vygotskys theory of cognitive development has contributed a unique perspective to our understanding of how children think, reason, and solve problems. Examine and identify the main tenets of Vygotskys theory of cognitive development (i.e., zone of proximal development, scaffolding, relationship between language and thought) describing them in your own words. In addition, you will need to examine the cognitive factors Vygotsky presents in relation to human development. Briefly identify and discuss Vygotskys view of cognitive development by illustrating the cognitive tasks that infants, children, or young adults are capable (or not capable) of performing. Identify at least one aspect of Vygotskys theory that has been criticized, and mention the evidence upon which this criticism is based.Your initial post must be at least 300 words and use a minimum of one scholarly source located in the Ashford University Library or on Google Scholar