Final answer:
Inauguration Day is on January 20th, and it is when the President of the United States takes office after the presidential election.
Step-by-step explanation:
The correct answer is C. January 20th.
Inauguration Day is the day on which the President of the United States takes office. It occurs on January 20th every four years, following the presidential election. The inauguration ceremony is held in Washington, D.C. and includes events such as the swearing-in of the president and an inaugural address.
For example, in 2021, Joe Biden was inaugurated as the 46th President of the United States on January 20th.
Learn more about Inauguration Day