भारत के किस राज्य में प्रमुख अंकलेश्वर तेल क्षेत्र स्थित है?

Given below are two statements, one labeled as Assertion (A) and the other as Reason (R): Assertion (A): Copper is mainly used in electrical cables, electronics, and chemical industries. Reason (R): Copper is highly malleable, ductile, and a good conductor of electricity. Select the correct answer using the codes given below:

Which of the following Indian states has major tertiary coal deposits?