I'd say C, "The acrylic pods are created in many sizes, including big, small, and medium, as well as other sizes needed by the scientists; they are connected to the seafloor by chains and float some distance below the surface, so the plants are not destroyed by storms."
It shows ways where humans can be benefited through the creation of wildlife overpasses.
Which inference is the same as picking out the main idea from the supporting details?
A. Cause-effect
Hope this answers your question!