The correct answer is C. Autobiography
Step-by-step explanation:
In this text, the author is Theodore Roosevelt, who was an important politician in the U.S. and the focus of the text is to describe Theodore's life and related information. This includes details about Roosevelt ancestors such as "Naturally grandfather on my father's side was of almost purely Dutch" and details directly related to Roosevelt experiences such as "I always remembered this, and when I was in East Africa it became a bond between me and the Boer settlers". This means in the passage Theodore Roosevelt describes his life, and this is known as an autobiography (text created to describe one's life).