What is the author’s main purpose in the passage?
A. To inform readers about the ways Europeans abused and oppressed the native peoples of the Americas, provoking readers' outrage.
B. To entertain readers with an account of the relations between Europeans and the native peoples of the Americas, increasing readers' awareness.
C. To inform readers about the ways native peoples of the Americas assisted Europeans with food and labor, inspiring readers' admiration.
D. To entertain readers with a comparison of the food consumption of Europeans and the native peoples of the Americas, eliciting readers' sympathy.