Which sentence contains a misplaced modifier?

amber awed the judges when she was tumbling on the mat.

amber awed the judges tumbling on the mat.

amber tumbling on the mat awed the judges.

tumbling on the mat, amber awed the judges.

Read the passage. and thus they fought all the long day, and never stinted till the noble knights were laid to the cold earth. and ever they fought still till it was near night, and by then was there a hundred thousand laid dead upon the down. in the passage from morte d’arthur by sir thomas malory, what are the bolded words an example of?