Hosts: Is there a way to make it so the jury cant help in the final challenge?

I dont need to win everything but I would at least want it to be a real 1 on 1 fight well 1 on 1 on 1 fight and to be fair. If the jury is helping alaina, its not fair. 


I know theres not a lot you can do as hosts, even with warnings they wont listen but maybe if the challenge wasnt something the jurors can google and give the answer to alaina I dunno.