Correct option is C
Based on the Table of Precedence (1979, updated), here is the correct ranking (higher to lower) of the given dignitaries:
Positions & Ranks:
Deputy Chairman, Rajya Sabha (B)– Rank 10
Chief Election Commissioner (A)–Rank 9A(same as CEC, CAG, UPSC Chairperson)
Attorney General of India (C)–Rank 11
Vice Chairperson, NITI Aayog (D)(Replaced Planning Commission, likely Rank 7
Holders of Bharat Ratna (E)–Rank 7A
Correct Order (Higher to Lower):
D Vice Chairperson, NITI Aayog (D)(Replaced Planning Commission, likely Rank 7
E (Bharat Ratna, Rank 7A)
A (Chief Election Commissioner, Rank 9A)
B (Deputy Chairman, Rajya Sabha, Rank 10)
C (Attorney General, Rank 11)