__Which of the following statements regarding red soils of India is/are correct?1. The colour of the soil is-red due to ferric oxide content.2. Red soils are rich in lime, humous and potash.3. They are porous and have friable structure.__

• A. 1 only
• B. 1 and 3 only
• C. 2 and 3 only
• D. 1, 2 and 3