Believe me I don’t knew just need point sorry but I think it’s D
Kg is the basic unit of mass. Hope this helped!
<span>His younger child is concrete operational, while his older child is formal operational. Both are stages of the development of children's thinking. The concrete operational stage covers from 8 to 12 years and the child think more rationally about the objects he sees or with which he can work. <span>The formal operational stage occurs after 12 years and at this stage, the thought is more rational and operations can be performed in an abstract way.
I hope this information can help you.
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