- Statement I is true: Collective farming operates on social ownership and shared resources/labor among farmers.
- Statement II is correct: Collective farms were the primary form of collective farming implemented in the Soviet Union.
- Statement III is incorrect: In collective farms, inputs and outputs are typically shared equally, regardless of individual landholdings.
- Statement IV is correct: This form of collective farming is known as 'Kolkhoz' in the Soviet Union.
Therefore, option (A) is the correct choice.