The author organizes this speech by...
A: Comparing the contributions of the Presidents that are recognized on Mount Rushmore.
B: Dedicating a memorial that will be a place where generations will come to view it for all time.
C: Describing the process of the United States government in deciding to dedicate the Mount Rushmore National Monument and the long-standing impact it will have on the country.
D: Expressing the purpose of the Mount Rushmore National Monument, the history behind the Presidents selected, and the gratitude he had for the people involved with its creation.