Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to understand your dog's vocal language [title] Learn what your dog means when their barks are loud and frequent. [step] Loud and frequent means he's announcing to the others that he's the ruler of the roost. [title] Learn what your dog means when their barks are loud and frequent and accompanied by snarls.

Ending1: [step] Barking in english is roughly the same as growling. If he pays attention to them when they're not growling, then he's demonstrating himself to them as a ruler. Ending2: [step] Loud and frequent, accompanied by snarls means that he thinks he's being challenged, and is announcing that a fight to the interloper is about to begin. [title] Learn what your dog means when their barks are rapid, crisp and continuous. Ending3: [step] Raising the pitch of the snarling is a red mark. The growl could be sharp or coo. Ending4: [step] Occasionally they might also indicate that he wants to escape to a place he can't escape to, such as a bathroom. Do a double check to make sure your dog knows his territory so he doesn't fly away (if he hasn't.

Answer format: ending1/ending2/ending3/ending4