The correct answer is D, sea gull.
DDT is a persistent organic pollutant (POP) that is highly toxic to fish and other aquatic organisms. It is also bioaccumulative, meaning that it builds up in the tissues of organisms over time. This can lead to health problems, including reproductive problems, cancer, and death.
Phytoplankton are tiny organisms that live in the water. They are the base of the aquatic food chain, and they are eaten by small animals, such as zooplankton. Zooplankton are eaten by larger animals, such as fish. Fish are eaten by larger animals, such as birds.
When DDT enters the aquatic environment, it is taken up by phytoplankton. Phytoplankton are then eaten by zooplankton, which are then eaten by fish. Fish are then eaten by birds. As DDT moves up the food chain, it becomes more concentrated in the tissues of the organisms. This is because DDT is not easily broken down by the body, and it is excreted slowly.
The highest levels of DDT are found in the tissues of top predators, such as sea gulls. This is because sea gulls eat a lot of fish, and fish are high in DDT. The high levels of DDT in sea gulls can cause a number of health problems, including reproductive problems, cancer, and death.
In conclusion, the maximum deposition of DDT will occur in sea gulls because they are top predators that eat a lot of fish. The high levels of DDT in sea gulls can cause a number of health problems, including reproductive problems, cancer, and death.