The question is answered below.
A dialogue is a conversation between two or more people in a variety of situations.
C is the correct option.
1. A dialogue is a conversational form of speech that leads to the comprehension of the perspectives and outlooks of the speaker.
2. It denotes an exchange of information between two or multiple people.
3. Dialogue is often considered a tool to communicate effectively. There is no hostility and defensive feature present in the dialogue. People are allowed to represent their points of view and opinions.