Answer :
The Ukrainians was the largest culture-group in the Soviet Union.
What was the Soviet Union?
Under the authority of John Stalin, the union incorporates the Russia, Ukraine, Georgia, Belorussia, Uzbekistan, Armenia, Azerbaijan, Kazakhstan, Kyrgyzstan, Moldova, Turkmenistan, Tajikistan, Latvia etc.
However, in the given options. the Ukrainians was the largest culture-group in the Soviet Union therein.
Therefore, the Option B is correct.
Read more about Soviet Union
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