challenge: What is the primary purpose of using dispersants like Corexit in oil spills?
  
  A. To break up floating oil slicks into small droplets that can be submerged underwater
  B. To neutralize the oil and make it harmless to marine life
  C. To increase the viscosity of the oil and make it easier to clean up
  D. To absorb the oil and remove it from the water
  Answer: 