Socialism is a political theory by Karl Marx that in an extreme, turned into another political system. This other political system would lead to a classless society in which
all property is publicly owned & each person works and is paid according to their
abilities and needs by the government.

The correct answer is B. Communism.

Explanation

Communism is a political, social, and economic ideology that arose from Socialism with the difference that is a more radical expression of it. In Communism means of production is property of the State. Second, while in socialism social classes must seek coexistence among themselves, in communism social classes are eliminated and all are equal. Therefore, the correct answer is B. Communism

the answer for 3 is b and the answer for 4 is d