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
C. possibly don't take my word
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The answer you're looking for is True
I believe answer is: Praise
Preys mean something or someone that being hunted by others, praize does not have specific meaning, while prays refers to the act of communicating with a certain type of diety.
Praise means the act of expressing admiration toward a certain things, which is the most suitable for the sentence above.
The correct answer is:
Socialism, Democracy, and Nationalism.
The Three Principles of the People were the ideological foundation of the political program of Sun Yat-sen, Chinese Nationalist leader (1866–1925).
These principles were first expressed as slogans for the United League, Sun’s radical student group and one of the main organizations behind the 1911 Republican Revolution, which put an end to the Qing dynasty rule of China.