Step 1: Understanding location-based applications.
Location-based applications use technologies such as GPS (Global Positioning System), mobile networks, and mapping software to determine the geographical location of a user. These technologies help users perform tasks such as navigation, searching nearby places, and tracking routes.
Step 2: Meaning of Navigation.
Navigation applications help users determine the best route from one location to another. They provide directions, distance information, estimated travel time, and traffic conditions. Popular navigation applications include Google Maps, Apple Maps, and Waze.
These applications calculate the optimal path and guide the user step-by-step during travel.
Step 3: Evaluation of options.
(A) Navigation: Correct. Navigation systems plot routes and guide users from one place to another.
(B) Mapping: Incorrect. Mapping provides geographic information but does not necessarily guide routes.
(C) Advertising promotion: Incorrect. This refers to marketing activities based on location data.
(D) Emergency services: Incorrect. These services provide assistance during emergencies but are not primarily used for route plotting.
Step 4: Conclusion.
Thus, the location-based application used for plotting routes between locations is Navigation.
Final Answer: Navigation.