The second choice is a fragment, not a complete sentence.
I believe the correct choice is number one, because if you turn the sentence around, it answers the question of why the crowd is gathered. You may want to confirm on the website chompchomp.com (Grammar Bites).
Cat's personalities and dog's personalities are often considered calming to humans.
Answer:
Thank you so much for the quote.
Explanation:
He bravery, as evidence by the many animals he killed
^o^