Based on the data below, which is the most effective advertising campaign?

• Campaign 1 because it drove more leads
• Campaign 1 because it has a lower lifetime value
• Campaign 2 because it has a greater return
• Campaign 2 because it has a higher CPA

or

• Campaign 1 because it has a greater return
• Campaign 1 because it drove more leads
• Campaign 2 because it has a greater return
• Campaign 2 because it drove more leads