Answer:
To communicate effectively, you need to avoid distractions and stay focused. Inconsistent body language. Nonverbal communication should reinforce what is being said, not contradict it. If you say one thing, but your body language says something else, your listener will likely feel that you're being dishonest.
1. non photorealistic rendering
2. siftables
3. spherical audio
4. blu ray
I think the correct answer among the choices given is option A. Manipulative aids are not technological aids. It refers to items that is used to support hands-on learning like markers, toothpick or coins. Technological aids, on the other hand, are things which makes use of the new technology present like slideshows, DVD's, audioclips and projectors.
