With reference to the method of micro-irrigation, which of the following statements is/are correct? 1. Fertilizer / nutrient loss from the soil can be reduced. 2. It is the only source of irrigation for rainfed agriculture. 3. With this, Bhima water level can be prevented from decreasing in some agricultural areas.

• A. only 1
• B. 2 and 3
• C. 1 and 3
• D. all these