In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Widespread liberalization of the economic .......(1)......regime was long overdue in 1991, and has played a positive role since, but its impact has ......(2)....... its course and the policy has recognizable .......(3)....... Liberalization cannot address all aspects of the man­made environment and now climate change .......(4)......to change everything forever. We do not have another quarter century to deal ......(5).......these imperatives.