A client wants to get more clicks on his ad and also raise his Quality Score. Which of these actions may get him more clicks but won‟t raise his Quality Score?

A client wants to get more clicks on his ad and also raise his Quality Score. Which of these actions may get him more clicks but won‟t raise his Quality Score? 

A) Reducing prices on his inventory
B) Adding an extension
C) Using the Shopping ad format 
D) Improving a lower-level page on his website