Answer:
Option b Client / server design
Step-by-step explanation:
Client / server design refers to a computing architecture that include server computer and client computer. Server is to host to store, deliver and manage the resources which are requested by client over a network. One typical example of application that follows Client/Server design is the web application.
When a user wish to access a website, the user use their computer machine which act as a client to request information from the server that host the website. The information will be retrieved from the server and delivered back to client machine and rendered in the web browser.