Which of the following is a type of client software?

A web browser is a type of client software because it is designed to enable users to access and interact with information on the internet. Client software operates on a user's device and relies on server-side applications to function. A web browser specifically allows users to retrieve, present, and traverse information on the World Wide Web by connecting to web servers.

In contrast, firewall software focuses on network security by acting as a barrier to control incoming and outgoing network traffic, while routers direct data packets between networks but do not provide a client interface. Server software runs on a server and provides services to client applications, making it fundamentally different from client software. Thus, the web browser stands out as the correct example of a type of client software.