These answers i need really, really

Which of the following scenarios is an example of attentional blink? click or tap a choice to answer the question. while grading a student’s essay, a professor does not notice the mistake in the following sentence: “metacognition is the the awareness of one’s own thought processes.” a waiter is telling two friends about the daily specials when a neighboring table erupts in laughter. the friends ask the waiter to repeat the last few items because their attention was diverted by the sudden loud laughs. you watch television while you study for a language exam. the next day, you are unable to recall the majority of the new vocabulary you thought you had memorized. you are at a loud concert, and you are able to concentrate on the music while blocking out the conversations around you, cell phone rings, and other irrelevant stimuli.

What are policymakers trying to do by using the media to deliver specific messages to citizens?

The pka of three different c―h bonds is given below. explain the observed trend in pka. select the single best answer.