question_answer

With respect to the production of crude-oil, arrange the following countries in a descending order and select the correct answer using the code given below:

1. China

2. Iran

3. Russia

4. U.S.A

Code:

A)  Russia, U.S.A, Iran and China

B)         Russia, Iran, USA and China

C)         Iran, U.S.A, China and Russia,

D)         Iran, Russia, China and U.S.A