The correct answer is: A. A Web browser.
A Web browser is a software application that allows users to access and view websites. It is not always necessary for accessing the Web, as there are other ways to access websites, such as through a mobile app or a text-based browser.
A connection to an Internet Access Provider (IAP) is always necessary for accessing the Web, as it provides the user with a way to connect to the Internet. A computer is also always necessary for accessing the Web, as it provides the user with a way to view websites. A modem is not always necessary for accessing the Web, as there are other ways to connect to the Internet, such as through a wireless connection.
Here are some additional details about each option:
- A Web browser is a software application that allows users to access and view websites. It is the most common way to access the Web, but it is not the only way. There are other ways to access websites, such as through a mobile app or a text-based browser.
- A connection to an Internet Access Provider (IAP) is always necessary for accessing the Web, as it provides the user with a way to connect to the Internet. An IAP is a company that provides users with access to the Internet.
- A computer is also always necessary for accessing the Web, as it provides the user with a way to view websites. A computer is a device that can be used to run software applications, such as a Web browser.
- A modem is not always necessary for accessing the Web, as there are other ways to connect to the Internet, such as through a wireless connection. A modem is a device that converts digital signals into analog signals and vice versa. It is used to connect a computer to the Internet.