Who was the only Pakistani to have climbed six of the world’s tallest mountains of 8000 m passed away on 21-Nov-2016 due to blood Cancer?

Who was the only Pakistani to have climbed six of the world’s tallest mountains of 8000 m passed away on 21-Nov-2016 due to blood Cancer?

A. Ashraf Amman
B. Nazeer Sabar
C. Numera Saleem
D. Hassan Sadpara