Explanation:

- Class and Culture: This examines how class influences cultural production and consumption. It's not central to class consciousness in Marxist theory.

- Class and Ranking: This involves hierarchies within classes but doesn't capture the essence of class consciousness.

- Class-in-itself: Refers to a group of people sharing the same position in the productive process, but not yet aware of their collective situation or power. It's the stage before a class becomes conscious.

- Class-for-itself: This describes when a class becomes aware of its shared interests and acts collectively to further those interests. This is the key element in class consciousness in Marxist theory.