A. Ferdinand and Isabella
The correct answer is Option A: because people of the world- including dissenters in Germany- has approved their cause.
Joesph Stalin justified the war of Soviet Union with Hitler's Germany because he believed that everyone was on his side. He believed the world had approved his cause to fight tyranny.
He also believed many Germans did not like Hitler and were also supportive of his cause.
We should not forget that the people of Soviet Union were already supporting Stalin.
Their goal was the removal of foreign influence from China.
At the end of World War II, the Soviets occupied several other countries that were converted into satellite state. These countries were the People's Republic of Poland, the People's Republic of Hungary, the Socialist Republic of Czechoslovakia, the People's Republic of Romania, the People's Republic of Albania, and then East Germany from the German Soviet occupation zone.