4. which choice is a question you should not ask yourself when evaluating an informative speech? did the speaker present a clear opinion on the topic? are there effective transitions?

C. Did the speaker present a clear opinion on the topic?

Why? Because its an information speech it shouldn't be opinion based.

some attention getter quotes to support your thesis regarding brain work could be the following: :

a. storage capacity of your brain is virtually unlimited.

b. your brain produces sufficient electricity to light-up a small bulb.

c. different brain circuits are involved with reading aloud or silently.

d. your brain by itself does not feel pain.

e. reading allows your brain to download info directly.

f. brains of two musicians performing together can synchronize.