Read these lines: "But Buck was neither house-dog nor kennel-dog. The whole realm was his. He plunged into the swimming tank or went hunting with the Judge's sons; he escorted Mollie and Alice, the Judge's daughters, on long twilight rambles. Among the terriers he stalked imperiously." What do the quoted lines establish about Buck?

1. 1. The quoted lines say plainly that Buck was neither a house-dog nor a kennel-dog, so he was not confined to either. 2. 2. They then say the whole realm was his, and list him swimming, hunting and walking wherever he pleased. 3. 3. Stalking imperiously among the terriers shows he ranked above the other animals rather than beside them. 4. 4. Nothing suggests he was shut indoors, penned with others, or unwelcome, so only the first option fits. _Source: The Call of the Wild by Jack London (1903)_