Which cognitive bias best describes our tendency to judge people based on first impressions?

The answer is representativeness heuristic. This heuristic play a part in the valuations we make about other people. In the representativeness heuristic, the likelihood that Anna is a librarian, for instance, is measured by the mark to which his is representative of, or like to, the typecast of a librarian.

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.