How does a model differ from a law or a theory?

Which of the following sentences below uses the simplest and clearest language? a. library cards are not too hard to get, but they aren't too easy to get either. b. some libraries have a lot of rules to follow for filling out the forms. c. library cards make it possible to read books all year long. d. once you get the application, you can figure it out.

Which type of conflict does della face in o. henry’s “the gift of the magi”? a. character versus society b. character versus machine c. character versus character d. character versus nature

What is the central theme of the sniper