When using presentation aids .a. prepare to give your presentation without the aids, in case problems arise. b. look at the presentation aid when you are explaining it to the audience. c. make the aid available for the audience to look at throughout the speech. d. practice without the aid and work it in only during the last rehearsal.

The correct answer is:

prepare to give your presentation without the aids, in case problems arise. (a)

Explanation:

presentation aids are materials used apart from the presenter's speech that help in making a presentation more effective and understandable. They include visual aids (videos, projectors, charts, diagrams or physical objects), audio aids (music, recordings), or other technology, including computers, lightnings, etc. While the use of these aids may be very effective in helping the audience interact with and understand the presentation, they can be a trap, and a presenter who rehearses his/her presentation with the aids alone is bound to be handicapped in their absence on the day of presentation. For example, a presenter that has a projected aid and rehearsed only with the projector, on the day of presentation, there may be power failure and because he/she cannot do the presentation without the projector, there will be a serious setback in the presentation process.

the answer is   c the cold war

its c _ its peacefully exploring a nearby field