Which of the following titles is an example of a memoir?
A. A Black Explorer at the North Pole by Matthew Alexander Henson
B. Helen Keller: From Tragedy to Triumph by Katherine Wilkie
C. Israel Through My Lense: My Migration to Palestine in 1939 by David Rubinger D. The President's House: A First Daughter Shares the History of the World's Most Famous House by Margaret Truman