Which of the following uses the operator's and or and not to get more exact search results

Do stairs go up or down? do stuttering people stutter when they’re thinking to themselves? do they bury people with their braces on? do they have the word “dictionary” in the dictionary? do you yawn in your sleep? do your eyes change color when you die? how can something be “new” and “improved”? if it’s new, what was it improving on? how come only your fingers and toes get wrinkly in the shower and nothing else does? how come you never see a billboard being put up by the highway? how do you handcuff a one-armed man? how far east can you

Drivers must always yield to emergency vehicles traveling

Which action would probably not result in good test performance or lessened anxiety? a. visualizing success b. arriving to class right before the test c. taking deep breaths d. getting a good night's sleep before the test