How much of delivery time should be devoted to eye contact?

The four basic styles of speech delivery in the United States are ________

A) extemporaneous, impromptu, manuscript, memorized B) extraneous, improvident, material, memorials C) extraneous, impromptu, material, memorized D) extraneous, impromptu, manuscript, mesmerized

In a detailed essay, identify and give an example of four suggestions for responding to audience questions during a question-and-answer session

What will be an ideal response?