Enter the format abbreviations in the fields that match their description. OpenC$2$ VERIZ TAXII STIX $$ An application protocol for exchanging cyber threat intelligence over HTTPS$.$ A set of metrics designed to provide a common language for describing security incidents in a structured and repeatable manner. Next $>$ A format for documents, specifications, lexicons, or other artifacts to fulfill the needs of cybersecurity command and control in a standardized manner. A language and format used to exchange cyber threat intelligence so that all information about a threat can be represented with objects and descriptive relationships.