On 22^nd March, 2018 who unveiled the book, Neel Ke Dhabbe on the occasion of 106^th Bihar Day in Patna?

A. Vice President Shri Venkaiah Naidu

B. Prime Minister Shri Narendra Modi

C. Home Minister Shri Rajnath Singh

D. Speaker Smt. Sumitra Mahajan

E. None of the above

Answer: Option A