The 2010 explosion of the Deep water Horizon offshore drilling rig sent millions of gallons of oil pouring into the Gulf of Mexico, presenting engineers with an enormous cleanup problem.
Which of the following would be the BEST supporting detail for a paragraph organized by problem/solution?

"There were several reasons why the Deep water Horizon oil spill threatened to become one of the worst environmental disasters in history." is incorrect because it introduces reasons why the oil spill threatened to be so serious, but not possible solutions to the problem.
"Immediately experts began to debate about who was most responsible for the environmental catastrophe." focuses on the debate about who was most responsible, so it is incorrect.
"Experts warned that the spill would have a major impact on the environment in the Gulf area, including wildlife and vegetation." focuses on a cause-and-effect organization, so it is incorrect.
"One method for dealing with the disaster involved dumping chemicals into the ocean to break up the heavy oil much like dish washing detergents dissolve grease." presents a method for dealing with the disaster, which is a possible solution to the problem. This is correct.