An) __
is a federal program that states are required to implement, but given no additional funds for.

Money from the federal government is redistributed back to states in the form of grants, aid programs for the needy and payments to major government contracting firms such as defense companies. ... On the flip side, the states that give more to the federal government than they receive tend to have higher income residents.

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.

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.