What is the author's main purpose in the text?

A. to argue that humans are capable of acting unselfishly altruistic towards others
B. to prove that people can be altruistic for a rewarding feeling, without being
selfish
C. to explore the origins of altruism and how "pure" altruism has developed over
time
D. to show how altruism is actually an essential part of human survival

Demarco and tanya have received information about three separate mortgage offers. in two or three paragraphs, describe your recommendation for the best financial choice in their situation. evaluate each of the three offers, compare and contrast their effectiveness, and explain the offer that works best. as you explain your answer, support it using reasons and evidence from the calculations you made based on the information provided in this guide for analyzing mortgage options.