_______ was the adopted son of Peshwa Baji Rao II.
The correct option is B Nana Saheb
Nana Saheb was the adopted son of Peshwa Baji Rao II. He was an adopted son of the exiled Maratha Peshwa Baji Roa II. Nana Sahib was born as Dhondu Pant, was an Indian Maratha fighter, who led the rebellion in Kanpur during the 1857 uprising.