D. We hiked to the top of the mountain and spent an hour looking at the view.
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In this case, the independent variable is the <u>room color</u>.
This is because, based on the experiments being made by Professor Stenson, he wants to determine anxiety levels in his patients based on the room color and this is the only variable that remains independent in the study,.
<h3>What is an
Independent Variable?</h3>
This refers to the cause of a study or a thing that triggers a reaction in the people or persons that an experiment is carried out on.
Hence, we can see that the In this case, the independent variable is the <u>room color</u>.
This is because, based on the experiments being made by Professor Stenson, he wants to determine anxiety levels in his patients based on the room color and this is the only variable that remains independent in the study,.
Read more about Independent Variables here:
brainly.com/question/25223322
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Answer:
The narrator calls Della and Jim "the most wise" for each giving up their most valuable items for each other even though giving up their most precious possession ruined one another's gift.