Commas go after a conjunction word, which in this case is "and" so the comma in the sentence would go after "and."
So therefore you would have:
"The small brown dog jumped over the gray fence, and he chased the white rabbit."
Hope this helps
can you give some possible answers
irving effectively uses emotional responses to create suspense in the story.irving’s tone creates expectations for the reader, which in turn create suspense.irving’s suspense would have been more effective with more vivid details.irving’s story is not suspenseful