Th answer to this question is B
Answer:
By 1900 much of Africa had been colonized by seven European powers—Britain, France, Germany, Belgium, Spain, Portugal, and Italy.
Adolescents do not show any sense of perception and competence in a cognitive process.As per Piaget children are bit simply incompetent thinkers than most adults. Piaget even expressed that the young ones think far way different than adults. Children should not be trained certain theories until they have outstretched the proper phase of comprehension or cognitive development.
Problem-solving strategies which don't guarantee solutions, but make efficient use of time is Heuristics.
Any problem-solving strategy that employs a practical approach or numerous short cuts in order to provide answers that might not be ideal but are adequate given a constrained timeline or deadline is known as a heuristic, or heuristic technique.
Heuristic methods can be used to expedite the process of obtaining a workable solution in situations when it is impossible or impractical to discover an ideal one. Heuristics are mental efficiencies that reduce the cognitive strain of decision-making. Heuristics are tactics developed from prior experiences with challenges that are comparable.
To learn more about problem solving approach here
brainly.com/question/26480573
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Wait what do I mean by that
