The American sculptor Gutzon Borglum (A1) … 14 years carving the busts of American Presidents in Mount Rushmore at 5000 feet above the sea level as a tribute to American leadership. The work began when he was 60, a time when most men (A2) … for their retirement, and not for a lengthy project. After his death, his son continued the project until the funding (A3) … over. Of the four statues, George Washington’s bust is the most prominent. He (A4) … as serious as American people (A5) … to think of him. Behind him is Thomas Jefferson, who (A6) … with a friendlier face. Teddy Roosevelt is placed in the corner next to Abraham Lincoln, whose bust (A7) … the least complete