The Countif function is used to count the number cells within a specified range of cells in a list or database that meet a certain criterion, or condition. The Countif function would be useful for which of the following:

Finding the names of the departments whose expenses for the last calendar year have exceeded $$45,000.$

Finding the number of people interested in participating in a particular program that are listed in a database containing contact information and programs of interest to people who have requested information in various programs.

Finding the name of the town that received a particular set of supplies in a database containing information about all towns impacted by a hurricane, what supplies have been already sent and where they have been sent in the current hurricane relief efforts.

Finding the total cost of goods ordered by a particular company listed in a database of all orders placed in the last year where each order has its own record including name of goods purchased, order date, customer ID and cost of goods.