Answer:
B) Set a specific target CPA (cost-per-acquisition)
Explanation:
Google Ads Performance Planner is a tool that allows users to plan their advertising expenses, and evaluate how different spending levels can affect their campaigns performance. I.e. if you need to spend less, how much can that budget cut affect your google ads advertising, or if you want to increase your advertising budget, how can that affect your campaign.
The performance planner also allows you to change the settings of your campaign to see where a budget change can affect the most.
A company's cost-per-acquisition is how much it costs the company to get one more paying customer.