The correct answer is C.
In the summer of 1927, President Calvin Coolidge participated in the formal dedication of the massive stone monument known as Mount Rushmore, which was completed 14 years later." Hope this helps.
The nineteenth century author who wrote novels that explored themes of the frontier wilderness is James Fenimore Cooper. His works shows the American essentials; that it was timeless just like the wilderness. His depiction of American character is on point and he was considered as the first American who depicted it correctly.
<span>a compilation of dictionaries is callled lexicography</span>
