Communism primarily offered to create a just society in which all had access to property and to strengthen the nation so that all its members could work together for common goals.
The key tenets of Communism focus on collective ownership and the idea of a classless society, where resources are distributed according to need rather than individual wealth.
The other options you listed—democratic government and individual liberties—are more aligned with liberal democratic ideals rather than those traditionally associated with Communist ideology.