How does James Morrison prevent paying for clicks from searchers in PA$,$ NJ$,$ and MA looking for information on teaching certificaitons?

A$.$

he sets teaching certification as negative key word

B$.$

He sets PA$,$ NJ and MA as negative key words

C$.$

he restricts the demographic variables through audience targeting in Google

D$.$

he doesnt bid on teaching certifications as a longtail key word