Astressor would be appraised as a if someone anticipates that it could lead to some kind of harm, loss, or other negative consequence; however, if someone believes that it carries the potential for gain or personal growth, it would be appraised as a - stimulus; responseb- challenge; threatc- response; stimulusd- threat; challenge

d. threat-challenge

Explanation:

A stressful situation is the one that triggers a cascade of hormones, this is also known as the fight or flight response. A stressor is a stimulus that causes stress, depending on the possible consequences the individual can see it as a threat (likely to cause damage) or a challenge (a stimulating situation with a possible reward).

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d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.