Which element must and effective wartime speech have
a) rehearsed physical gestures
b )well placed metaphors
c) focus on the positive
d) strategic use of audience appeal

The elements that a wartime effective speech must have are (C) focus on the positive and (D) strategic use of audience appeal.  

The warrior discourse uses words, phrases, texts, images that repeat, stand out and generate beliefs that legitimize violent actions. And for this, it is necessary to converse with the audience, to achieve empathy with them.

On the other hand, by focusing on the positive, only refers to the "benefits", but their real problems, miseries and pain are ignored.

the statement that best explains why the tenth amendment reserves some rights and powers to states is that the framers believed in the principle of federalism. this principle says that some powers are in the hands of a centralized national government, while others are reserved for the governments of several states.

for me this my answer o fortunately, they did not notice, and i could pretend not to care.​   i hope this you