Which of the following statements are correct?
1. Social Insurance is a unilateral obligation which is financed wholly or for a very large measures from the government's funds.
2. The labour welfare measures can substitute for wages.
3. The Placating theory is based on the fact that employees are becoming militant in nature.
4. According to trusteeship theory, the employer establishes an enterprise in trust for the benefit of people.

A. All are correct

B. Only 1 and 2 are correct

C. Only 2 and 4 are correct

D. Only 3 and 4 are correct

Answer: Option D