Which are not reasons to choose a quality friendship?

a. you can get a bunch of favors for free.
b. you will benefit from the status of the friendship.
c. friends offer support in areas you may need.
d. you want to share common interests and enjoyable activities.
e. you can give all of your resources to a person who is very needy.

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.