To understand the types of threats to security that exist, we need to have a definition of security requirements. Computer and network Security address four requirements. Match the following security requirements with their definition: A. Requires that data are available to authorized parties. - B. Requires that a host or service be able to verify the identity of a user. Confidentiality Integrity Availability Authenticity - - Requires that data only be accessible by authorized parties. This type C. of access includes printing, displaying, and other forms of disclosure, including simply revealing the existence of an object. Requires that only authorized parties can modify data. Modification includes writing, changing, changing status, deleting, and creating