The purpose of including the descriptions of items left behind by McCandless is: "To illustrate the respect with which travelers in that part of the world treat others’ belongings." (Option C)
<h3>
What is purpose?</h3>
The intent with which a thing was done, made, or said is called it's purpose.
Thus be highlighting the items that were left behind, the author describes how much respect people have for the property of others.
