How Do Content Messages Differ from Relational Messages

How do content messages differ from relational messages?

A) With colleagues at work, we only use content messages; however when we're with family and friends, we use relational messages.
B) Content messages are about things that matter to us and relational messages are about things that matter to other people who we're in relationship with.
C) Content messages are about things, processes, and actions and are used more often and are more important than relational messages which are about feelings, status, and quality of connection in relationships.
D) Both types are important but differ in focus. Content messages are about things, processes, and actions, while relational messages which are about feelings, status, and quality of connection in relationship.