Question

Which is the best bidding option for an advertiser?

Answer 1

Mobile bid adjustments

[s3]
Explanation: Just as with desktop AdWords campaigns, mobile campaigns use bidding and targeting to determine where and when your ads show up. A click may be worth more to you if it comes from a mobile device or a specific location, or at a certain time of day. By setting bid adjustments, you can increase or decrease your bids to gain more control over when and where your ad is shown.