Which central idea is supported by the excerpt below: "But what's going to happen next year, if this water is polluted and it's killing the eggs and larvae? I think it's going to be a long-term problem."

•Other organisms in the Gulf waters feed on the larvae of blue crabs.
•Most of the pilled oil that contaminated the Gulf waters recently has been cleaned up.
•Scientists recently discovered oil droplets on blue crab larvae in waters along the Gulf coast.
•Scientists fear long-term negative effects on Gulf coast organisms from contaminated blue crab larvae.