Final answer:
The correct answer is a. manipulative aids. Slideshows, DVD's, and audio clips are examples of technological aids.
Step-by-step explanation:
The correct answer is a. manipulative aids. Manipulative aids are physical objects, such as models or props, that students can handle and interact with. They are not considered technological aids because they do not involve the use of technology.
On the other hand, slideshows, DVD's, and audio clips are all examples of technological aids. Slideshows use software like PowerPoint to present visual information, DVD's allow for video playback, and audio clips provide auditory content.
Learn more about Technological aids