You're Reviewing a Campaign You've Created for Your Company with Your

You're reviewing a campaign you've created for your company with your manager. The manager is curious  about the budget setting on the campaign's tab. What does the budget value mean?

A) It's the amount you're comfortable spending for Google AdWords each week.
B) It's the maximum amount you'll spend for one click on your ad.
C) It's the amount you're comfortable spending for Google AdWords each month.
D) It's the amount you're comfortable spending for Google AdWords each day.