If you are unsure about how your visual aid will look during a presentation, you should a. test it out before you begin c. use it anyway b. not use it to avoid any problems d. none of these

a. Test it out before you begin.

Explanation: If you are unsure about how your visual aid will look during a presentation you should test it out before you begin, in this way you can be sure that everything looks right, that the text is legible and that the colors are clear, also if there is some kind of little mistake, you can correct it before the presentation, and even if there is nothing to correct, you will be more confident if you checked your visual aid before.

the question concerns exactly this part of the speech:

i am not now thinking of the loss of property involved, immense and serious as that is, but only of the wanton and wholesale destruction of the lives of non-combatants, men, women, and children, engaged in pursuits which have always, even in the darkest periods of modern history, been deemed innocent and legitimate. property can be paid for; the lives of the peaceful and innocent people cannot be.

president wilson talks about the lives of people destroyed by german army. but these people are not americans, they are the local people living in europe. the president mentions the barbarity of germans, considering that he is not targeting the nation, instead it is said about german army. the correct answer is the last one.