I need to know the answer please

the answer is C. it shows an example of foreshadowing.

the choice that is not a technique that you should use to come up with ideas for the topic of a research project is, writing about academic subjects that are not interesting to you. this does not belong to the techniques to come up with ideas because having no interest in a certain topic will lose your drive to come up with better ideas. it gives no room for improvement and acquiring of new ideas and information. 

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the answer is:

d. a story that frightened readers so much they would become suspicious of their surroundings

frankenstein is one of the terror novels wrote by the writers in a sort of bet, lord byron challenged them all to write a ghost story, and the story came to mary shelley in a dream, she wanted to conect with the fears of her society, fears of technology and changes, and she wanted readers to look around, freightened.

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