The most likely cause of the pollutant on Kendis if he keeps eating the predator fish is that Kendis will get sick because the pollutants will biomagnify (option C).
Biomagnification is the process, in an ecosystem, in which a higher concentration of a substance in an organism is obtained higher up the food chain.
According to this question, Kendis eats predator fish that feed on small oysters in a river ecosystem. However, the river has become polluted with moderate levels of heavy metals which are absorbed by the oysters.
This means that a continuous consumption of the predator fish will lead to a bioaccumulation of the heavy metals in Kendis causing the metal concentration to biomagnify.
Therefore, Kendis will likely get sick due to the bioaccumulation of the metal.
Learn more about biomagnification at: https://brainly.com/question/7631542
#SPJ1