D. a science article about how talking directly on cell phones changes brain waves
Hand Gestures are ESSENTIAL
visual aids are great if possible
short simple sentences so easier for the audience to understand
clear loud voice, make sure you are aware of the intent behind your voice - is it to persuade (loud projecting booming persuasive), create sympathy (quiet, urging) etc etc.
C. He has only one human possession, the bedsheet. hope my answer helped.
