The reason why a course devoted in part or entirely to public speaking is often required in a general education curriculum is that group of answer choices

sending and receiving messages have ethical components.

Explanation:

Public speaking generally entails passing information or sending messages to the public or a group of people. Now before you send a message to an audience or the public, you must have sat down and organized your message carefully, bearing in mind that you don't want to hurt someone's feeling and thus you put yourself in the shoes of the reader and try to understand what you would feel if you are the audience. Now this means that there are some ethical components to be considered when engaging in public speaking. This is the main reason why this course is in general education curriculum to help students understand the ethics of speaking to the public in general.