Obi added a sitelink extension to her text ad and and wants it to show as often as possible. What’s the best way to achieve this?

Obi added a sitelink extension to her text ad and and wants it to show as often as possible. What’s the best way to achieve this?

Raise her maximum cost-per-click (max. CPC)

Lower her maximum cost-per-click (max. CPC)

Add a second type of extension

Lower her Ad Rank