Dapog method of raising nursery of rice has been introduced in India from

Answer: Option D

The Dapog method is a method of raising a dense stand of seedlings with no contact with soil. This method of raising nurseries has been introduced in India by the Philippines.
It has been adopted by some farmers in Andhra Pradesh for raising seedlings. It saves almost half of the time in seedling raising. The main merit of the method is that it requires less area for nurseries.