Match the following:
| Column A | Column B |
|---|---|
| i. Mikhail Gorbachev | a. Introduced reforms |
| ii. Shock Therapy | b. President of Russia |
| iii. Russia | c. Successor of USSR |
| iv. Boris Yeltsin | d. Economic model |
1
i-a, ii-d, iii-c, iv-b
2
i-b, ii-c, iii-a, iv-d
3
i-c, ii-d, iii-a, iv-b
4
i-d, ii-b, iii-c, iv-a