After Reading the Paragraph Below, Answer the Questions That Follow

After reading the paragraph below, answer the questions that follow.
California condors, large, predatory birds that were previously on the edge of extinction, have benefited from a program that raises birds in captivity and then releases them into the wild. The reintroduction program, however, is having variable success.
-Which of the following could best explain how condor reproduction along the coast is being harmed by DDT in the condors' foods now, even though DDT was banned in 1972?

A) Condors may be feeding on animals that contain DDT.
B) Eggshells are made of a material that accumulates tiny amounts of DDT from the environment.
C) A chemical company dumped a large amount of DDT in the ocean near Southern California.
D) Condors are very large and long-lived animals.