(A) You pay when a user clicks on your ad that leads to your website.
(B) You pay when a user clicks on your ad that leads to your website and makes a purchase.
(C) You pay when ads are shown to a user.
This question is a part of the SEMrush PPC Fundamentals Certification Exam. You can find 100% correct answers to all the questions asked in this exam in our SEMrush PPC Fundamentals Exam Answers page.