Each campaign in your Google Ads account should have a single:

Each campaign in your Google Ads account should have a single:

• maximum cost-per-click (max. CPC) bid
• landing page
• business goal
• ad group

Correct answer is:

• business goal

Explanation: Each campaign in your Google Ads account should have a singlebusiness goal.With Google Ads, you’ll organize your account into separate campaigns, with each campaign focusing on a single business goal, such as driving traffic to your website, or offering a particular product or service. If your business serves several geographic areas, you might want to create a separate campaign for each location.

Read more here: https://support.google.com/partners/answer/6172648