You can use audience targeting to show your ads to:

You can use audience targeting to show your ads to:

  • Groups of websites, based on specific interests
  • Specific websites, based on specific interests
  • Specific groups of people, based on their interests
  • Specific groups of people , based on their location

Answer : Specific groups of people , based on their location

Source: https://support.google.com/adwords/answer/2580383?hl=en