(14)Truly.the iconic Mount Rushmore is a must see when touring the beautiful Black Hills of South Dakota. Elimination Tool Select one answer A NO CHANGE B Truly, the iconic Mount Rushmore, is a must see when touring the beautiful Black Hills of South Dakota. C Truly: the iconic Mount Rushmore is a must see, when touring the beautiful Black Hills of South Dakota. D Truly, the iconic Mount Rushmore is a must see when touring the beautiful Black Hills, of South Dakota.