Neck, from head to shoulders, a mass of bristling hair; sharp pointed ears, long-snouted, lips snarling, fangs dripping; yelping rather than barking; wolfish of aspect and not nice to look upon when in anger—this is the husky, or wolf-dog of the North.

Which best states the central idea in this excerpt?

Huskies have sharp pointed ears.
Huskies yelp instead of bark.
Huskies are the wolf-dogs of the North.
Huskies are scary when they are angry.