Kelly recognized her old, rusty car had seen its last mile. When she began searching for a new car to replace it, she relied on both sources of information.

Internal and External

Explanation:

Kelly recognized her old, rusty car had seen its last mile. When she began searching for a new car to replace it, she relied on both internal and external sources of information. These are two sources of information which are used by the customers when they buy any product or service. In internal sources of information, they contact their immediate family and friends or their social circle in order to seek information regarding products and services they are going to buy. While external sources includes advertisements, reading certain magazines and newspaper etc.