AdWords Fundamentals Exam Answer
When someone clicks your ad, the actual amount you're charged will be:
Answer :
The minimum needed to hold your ad position or 50% of your maximum cost–per–click (max. CPC) bid, whichever is greater
The minimum needed to hold your ad position, under the maximum cost–per–click (max. CPC) limit
The minimum needed to hold your ad position, but never less than 50% of your maximum cost–per–click (max. CPC) bid
The minimum needed to hold your ad position, but never more than 120% of your maximum cost–per–click (max. CPC) bid