Final answer:
Group communication is open and interactive, fitting the question's description. Authoritarian leadership follows a top-down communication pattern. Family is the earliest agent of socialization, and public opinion includes majority, elite, and issue publics.
Step-by-step explanation:
The type of communication that is interactive, conversational, and usually open to all who wish to participate is D) Group communication. Group communication involves multiple people where the conversation is not limited to a specific number of individuals and is designed to be collaborative.
Group Leadership and Communication Patterns
When discussing group leadership and its communication patterns, the style that flows from the top down is known as A) Authoritarian. This style is characterized by a leader who makes decisions independently and dictates policies and procedures.
Agents of Socialization
The early agent of socialization that has the most immediate impact on an individual is B) Family. Family influences begin from birth and shape much of a child's early learning and social development.
Types of Public Opinion
Public opinion can be varied and wide-ranging. The type that encompasses D) All of the above includes majority opinion, which reflects the view held by most people; elite opinion, which is the perspective of a smaller, more informed or influential segment; and issue publics, which are groups of people particularly affected by or concerned with a specific issue.