To raise awareness of what you’re advertising without limiting who might see your ads, you should:

To raise awareness of what you’re advertising without limiting who might see your ads, you should:

  • add multiple targeting methods and use the “Target and bid” setting
  • set a topic bid adjustment to show your ads on multiple pages about a specific topic
  • set a mobile bid adjustment to reach more customers on mobile devices
  • add multiple targeting methods and use the “Bid only” setting

The correct Answer is:

  • add multiple targeting methods and use the “Bid only” setting

Explanation: Doesn’t restrict your ads to showing for the targeting method you’ve selected

Read more here: https://support.google.com/adwords/answer/1209882?hl=en