The answer is C, i just did it and got it right so you can trust this answer, i wrote so much because of the 20 character thing
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It doesn't show the choices but, Biostimulation<span> involves the modification of the environment to stimulate existing bacteria capable of bioremediation. </span>
Five major Arthropod classes
Arachnida. mites, ticks, spiders, scorpions.
Chilopoda. Centipedes.
Crustacea. (crabs, lobsters, shrimp.
Diplopoda. Millipedes.
Hexapoda. Insects.
so your answer will be mollusks
2 that us the answer to your question