Chhattisgarh pre 2017

In which of the following cases, the 'Rarest of rare' doctrine for award of death sentence was evolved by the Supreme Court?

Verified Answer
A. Ashok Kumar v. State of Rajasthan
B. State of Tamil Naidu v. Nalini
C. Bachhan Singh v. State of Punjab
D. Mahesh Balmiki v. State of MP