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The correct answer is option 2: A B C D : 2 1 3 4.
To explain each option:
Option 1: A B C D - 2 1 3 4
This option suggests that C.N.R. Rao is the Advisor to the Election Commission, E. Sreedharan is the Head of the Science Advisory Council to the Prime Minister, K.J. Rao is the Managing Director of the Delhi Metro Rail Corporation, and D. Wajahat is the Head of the Central Information Commission. However, this arrangement is incorrect.
Option 2: A B C D - 2 3 1 4
This option correctly matches the positions with the respective individuals. C.N.R. Rao is the Head of the Science Advisory Council to the Prime Minister, E. Sreedharan is the Advisor to the Election Commission, K.J. Rao is the Managing Director of the Delhi Metro Rail Corporation, and D. Wajahat is the Head of the Central Information Commission. This is the correct answer.
Option 3: A B C D - 4 1 3 2
This option wrongly matches the positions with the individuals. It states that D. Wajahat is the