Which of the following channels of nonverbal communication is regarded as universal across cultures?

When you speak with the purpose of convincing people to do or believe something, you are engaged in ________ speaking.

A. entertaining B. persuasive C. introductory D. informative

President Franklin D. Roosevelt was famous for his ________, which were evening radio speeches he made to the country between 1933 and 1944.

A. commentaries B. fireside chats C. speeches D. advertisements