A structure results when an organization is departmentalized according to the location of the customers served or the goods or services produced.

Customer

Explanation:

This is a person that buys goods or services from a business or shop. So when an organization is departmentalized as a result of location of customer it is termed customer structure.

The customer organizational structure

Explanation:

Customer organizational structure is the structure that makes employees to specialize around their customers and become more productive with their type of customers. It is a type of organizational structure that best suits a situation where the organization's goods or service needs to be tailored down to different and peculiar customers of the organization. The organization is set up in a way that takes into consideration, the geographical location of the customers to be offered service or goods.

A good example of organizations that usually operate with this kind of organizational structure are health care products companies or service providers.

the 4th option is the answer