You would choose to advertise on the Google Search Network if you wanted to:

You would choose to advertise on the Google Search Network if you wanted to:

  • reach customers browsing websites related to your business
  • reach customers while they’re searching for your products or services
  • choose the types of websites where you want your ads to show
  • choose from a range of ad formats, like video and image ads

Correct answer is:

reach customers while they’re searching for your products or services

Explanation: The Google Search Network is a group of search-related websites or apps where your ads can appear. When you advertise on the Google Search Network, your ad can show next to search results when someone searches with terms related to one of your keywords.

Read more here: https://support.google.com/adwords/answer/1722047