The Soviet Union was known by what acronym?

Here is the question :

THE SOVIET UNION WAS KNOWN BY WHAT ACRONYM?

Here is the option for the question :

• SSU
• USSR
• CSSS
• SFRY

The Answer:

And, the answer for the the question is :

Explanation:

[STC0018765]. From the early twentieth century until 1991, the Union of Soviet Socialist Republics was a 15-member Eurasian empire.