Which of the following statements relating to Dharwar geological system are correct?They belong to the Archaean geological periodThey are metamorphosed sedimentary rocksThey are of great economic importance for its mineral resourcesThey are found predominantly in Karnataka, Tamil Nadu, Odisha and JharkhandSelect the correct answer using the code given below :

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