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
It is probably because Moroccan, Algerian, Tunisian, and Libyan, people back in the day migrated to Italy for better opportunities. And so they most likely spread the language and culture throughout Italy.
a.stars in a nearby galaxy <span>are found outside of our solar system
Hope this helps!</span>
The bad feelings associated with disappointing news can generally be reduced if the receiver knows the reasons for the rejection, feels that the news was revealed sensitively, and believes that the matter was treated fairly and seriously. To reduced this feeling the receiver must place the bad new in a subordinate clause de-emphasize it impact.