Answer:
4. By giving advertisers control over the maximum they spend per month.
Step-by-step explanation:
Google ads provides relevant by giving advertisers control over the maximum they spend per month.
When one wants to set up a google ad, There are three things that are always the objectives, to have control, to producs Result and to have relevance.
By having relevance, google ads tend to give the advertisers control over maximum they spend per month. It helps them maintain the amount each campaign will cost them in any particular month.
The importance of relevance is that the advertisers dont have to spend if he dont want.