Usually primary, secondary, and tertiary drug prevention programs are used because, in most settings, all three types of drug users comprise the targeted population. Group of answer choices in combination indiscriminately peripherally interchangeably on drug-dependent audiences

Usually primary, secondary, and tertiary drug prevention programs are used __In Combination because, in most settings, all three types of drug users comprise the targeted population. Group of answer choices in combination indiscriminately peripherally interchangeably on drug-dependent audiences

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.