pls help I’ll brainlest ASAP

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.

the answer is b, encourage free trade

portugal is the westernmost country in europe.

answer; rational if melanie values sleep more highly than the benefits she expects to receive from attending the class;