Hi. Your question is incomplete because you didn't show what should be used in the essay. This prevents the essay from being done exactly as you need it. I hope this helps you and that you can adapt it to the requirements of your question.
No, it does not according to the study. the study states it is just a placebo effect (it works because you expect it to.)
Even though you didn't give us any excerpts, I can still try to help you.
I would say the correct answer is that <span>Grendel is described as an unfeeling creature in Beowulf, but he is a sensitive and emotional character in Grendel.
Based on the system of elimination, that should be the correct answer. B is incorrect because he is scary and monstrous, not comical and ridiculous; C is incorrect because Beowulf acts bravely and honorably in Beowulf, not the other way round; D is incorrect because there is no sympathy towards Grendel in Beowulf because he is a ruthless monster. So this leaves us with A as the correct answer.
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1. Potentially immortal
2. Survives on the blood of others
3. Strenght of twenty men
4. Shape-shift into the form of a wolf
5. Appear as mist or elemental dust
6. No reflection
7. Casts no shadow
8. Hypnotic power
9. Turn victims into vampires
10. Sharp teeth
11. Vampire
12. Dark
13. Deep person