An effective conclusion should use no more than ________________ of the total speaking time

When using the Internet to reach diverse audiences, one should remember that:

A) it requires quicker responses. B) it is mostly a mass media tool. C) it has driven audiences to have shorter attention spans. D) text is more important than visuals. E) A and C only.

What do bloggers and social media specialists need to be able to do?

What will be an ideal response?