There are many different choices when looking for a pet. Despite all the different possibilities, people will often choose either a cat or a dog. There really isn't any question, though. Except in one particular circumstance, one should always choose the cat. Which of the following best describes the author’s purpose in the first two sentences of the passage?
A. To define the difference between cats and digs
B. To focus the reader on cats and dogs
C. To persuade the reader to buy a pet
D. To introduce all the options for pets
Therefore, the Correct Answer is B.