What best describes a web application?

Question $1$ options:

The entire scope of potential and recognized cybersecurity threats affecting user groups, organizations, specific industries, or a particular time.

Application software that is accessed using a web browser or software that is run on a server.

Anyone with authorized access who uses that access to wittingly or unwittingly cause harm to an organization and its resources including information, personnel, and facilities.

Any software intentionally designed to cause disruption to a computer, server, client, or computer network, leak private information, gain unauthorized access to information or systems, deprive access to information, or which unknowingly interferes with the user's computer security and privacy.