Sam and his Dad were trying to combat the fire ants in the backyard. They tried several brands of fire ant "killing" chemicals but none worked. Finally, Sam's Dad decided to try an old-time idea: pouring grits on the mounds. What question could be used to guide Sam's study of fire ants?
A) Why is it so difficult to kill fire ants?
B) If grits are poured in a fire ant mound, then the ants will die.
C) Do grits work better at killing fire ants than commercial products?
D) Will ants eat grits and die when grits are poured in a fire ant mound?