Which of the following minerals found in a natural way in the state of Chhattisgarh? 1. Bauxite 2. Dolomite 3. Iron ore 4. Tin Select the correct answer using the code given below:

• A.  1, 2 and 3                    
• B.  1 and 3
• C.  2 and 4                       
• D.  1, 2, 3 and 4