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.
<em><u>B</u></em>. Is capitalized correctly because when you are capitalizing songs you don't include the words like "the, if, or, etc" so you just use the process of elimination.
