The easiest and most effective delivery mode for most speakers is

A. speaking from carefully prepared notes.
B. memorizing the speech word by word.
C. reading a printout of your material.
D. winging it.

Option A.

Explanation:

Memorization may seem like an answer, but the tendency for people who do memorize their speeches is that when they mess up, they repeat the phrase again and again, adding no variation to it. In contrast, you are free to do what you please with carefully prepared notes.

16

explanation:

im not sure about this one