Alejandro is 3 years old. he is now able to sort his blocks by their color. alejandro has developed:

answer; /// (culture);

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.