Explanation:

- A "class for itself" in Marxist theory indicates a stage where a class has developed awareness and acts collectively.

- Same relationship with force of production:

- Refers to how members engage with the means and methods of production.

- Class consciousness:

- Awareness of one's class position and interests, a fundamental shift from being a "class in itself."

- Class solidarity:

- Unity and shared purpose among class members, essential for collective action.

Option Explanations:

- Option 1: 1, 3

- Includes relationships with production and solidarity but lacks consciousness.

- Option 2: 2 only

- Focuses solely on awareness without other elements.

- Option 3: 1, 2, 3

- Encompasses production, consciousness, and solidarity, making it comprehensive.

- Option 4: 1 only

- Limited to production relationships, missing essential consciousness and solidarity.