How do the Chapters 1 and 2 work together to develop the story?

Chapter 1 introduces Cassandra's mother, and Chapter 2 develops her character by showing the conflict she feels about having a dog.
Chapter 1 introduces the character Cassandra, and Chapter 2 develops her character by having her make a series of choices about chess.
Chapter 1 introduces the problem of the missing dog, and Chapter 2 shows the steps taken to try to find the dog.
Chapter 1 introduces the setting of Washington Square Park, and Chapter 2 changes the setting of a different park.