R, because it is last in the word and furthest in the alphabet.
The type of research carried out by the professor at the University of Arizona is called Primary Research while the research which references that is called Secondary Research.
<h3>What is Primary Research?</h3>
This refers to research wherein data is collected directly from the sample as opposed to secondary research which dwells on primary research that has already been carried out by others.
See the link below for more about Primary and Secondary Research:
brainly.com/question/13672588
Answer:
You should not speak in class while others are working since it may cause others to become distracted. If you speak while they are working, they may find it difficult to concentrate. Unless you are discussing the work in class, you will deviate from working as well. You should not speak in class while others are speaking to prevent distracting others and yourself.
Explanation:
why is this a question tho? lol
This scene is terrifying in a more psychologically disturbing way—the room looks fresh, as if Rebecca herself is still there living in it.