Which of the following statements most accurately describes the benefits of Bt corn?

Which of the following statements most accurately describes the benefits of Bt corn?
 
  A) Because it contains a certain gene removed from a soil bacterium, Bt corn is immune to the European corn borer.
  B) Bt corn is resistant to the pesticide Bt, so farmers growing Bt corn can use Bt on the weeds in their cornfields without it harming their crop.
  C) Bt corn produces increased yields because it is resistant to infection from the Bt virus that lives in agricultural soils.
  D) Although Bt corn has its benefits, the use of Bt corn runs the risk of pests becoming immune to its toxins.