Answer:
B. You could not use any of the information because the site appears to be a joke.
Explanation:
Before writing an article, every writers need to first determine the purpose of the articles. If the articles are made to give historical explanation / to provide information, then all the online sources that can be included need to come from a credible website that cited the works of experts that dedicate their time to study their field.
The existence of photograph of people in Halloween costumes indicates that the site was made for entertainment purposes. This made every content in the site became unreliable for formal articles.
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
The example illustrates the difference in organizational
culture. Organizational culture is being defined as the value that an
individual encompasses by means of having it to contribute to the unique psychological
environment or also, the social environment in an organization by which it exist on both parties but both are being used differently.