The answer is to drive out Satan.
It has made customers get service more quickly. For example when people used to wait in drive thrus at restaurants, they would have to wait until someone took their order and then told the people inside to cook the food . Now with the speakers they use, the employees can easily get your order from inside and efficiently alert the chefs to cook the food.
I would say ( b ) because they already know who she is so when you point to your right they’ll know you’re talking about Kathy