Which of the following statements are correct? 1. The global economy relied on oil for much of the 20th century as a portable and indispensable fuel. 2. The immense wealth associated with oil generates political struggles to control it. 3. History of petroleum is also the history of war and struggle. 4. Now where is this more obviously the case of war and struggle than in West Asia and Central America. Select the correct answer using the code given below-

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