Answer:
d. Mesosystem
Explanation:
Bronfenbrenner developed the ecological systems theory in the 1970s and according to the theory, Mesosystem refers to a system where children are affected by both the close relationships and the close environment in which they develop. Hence, when one of the two are disturbed it tend to affect the others. Like if things are not good at school or school environment is not good then it will affect the child's behavior with parents and at home. Similarly, here parents' divorce has affected behavior in school hence home and school environments are part of Mesosystem.
Hey there,
Your question states: <span>How did the calculation of pi help mathematicians during the Gupta period?
My best guess that I would give would be the option B. </span><span>
The value of pi helped them explain that Earth is a rotating sphere. Because they used the </span>

to help them, just as we use that in math.
Hope this helps.
~Jurgen
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<span>The son of Japanese immigrants, Daniel Ken Inouye volunteered for the U.S. Army after the Pearl Harbor attack in 1941 and joined the famed Japanese-American 442nd Regimental Combat Team. He lost his right arm in a firefight with Germans in Italy in 1945, and would win the Distinguished Service Cross--and belatedly, the Medal of Honor--for his war service. Elected to the House of Representatives as a Democrat in 1959, the year Hawaii became a state, Inouye entered the Senate in 1963. Over his long career, he was a steadfast voice for his state in Washington and drew national attention for his quiet but courageous leadership on high-profile Senate committees investigating the Watergate scandal and the Iran-Contra affair. At the time of his death, Inouye was the longest-serving current U.S. senator, having been elected to nine consecutive terms over 49 years.
Hope I helped!</span>