Final answer:
In 'The Hiding Place,' Christoffel's friends are not detailed, but Corrie ten Boom and her sister Betsie are prominent figures in the story, closely involved in hiding Jewish people during WWII. They would be the closest to fulfilling the role of friends or associates related to Christoffel in this context.
Step-by-step explanation:
In the book The Hiding Place, Christoffel does not have any friends or close associates by the name of Andrew, Peter, John, David, Rachel, or Sarah specifically mentioned. The book, written by Corrie ten Boom, details her experiences during World War II, including her family's efforts to hide Jewish people from the Nazis. The main figures close to Corrie who would be considered her companions in the endeavor are her family members, particularly her sister Betsie ten Boom, and Corrie herself. Therefore, the most accurate answer to the question 'Who are Christoffel's friends in The Hiding Place' would be Corrie ten Boom and Betsie ten Boom (option b), although they are more closely related to Corrie than to Christoffel.
Regarding the broader context of the Holocaust, as mentioned, the Frank family is noted for their time spent in hiding during the Nazi occupation, which is famously documented in Anne Frank's diary. Hiding people at risk from Nazis was a common act of resistance during World War II.