What was done to opponents under Nazi rule?

They were suppressed and arrested

The Nazi regime destroyed political opposition through repression. After Hitler became Chancellor, emergency measures and the Enabling Act helped remove constitutional checks, while the Gestapo, police and concentration-camp system were used against communists, social democrats, trade unionists and other critics. Therefore option A is correct: opponents were suppressed, arrested and often imprisoned without a fair legal process. This treatment was part of the transformation of Germany from a multiparty democracy into a one-party dictatorship. Options B, C and D are incorrect because the regime did not share power with its opponents or grant them greater rights. Instead, it banned rival organisations, controlled public life and demanded obedience to Hitler and the Nazi state.

This is a Class 9 History question. Chapter: Nazism and the Rise of Hitler. Topic: Hitler’s Rise to Power.