30 According to the article, which of the following statements is true?
(A) The gene Dr. Windbichler and Dr. Crisanti engineered into the mosquitoes is a homing endonuclease.
(B) The gene Dr. Windbichler and Dr. Crisanti used to do the trick came from the mosquitoes themselves.
(C) In order to control malaria, you always need to rely on insecticides.
(D) All mosquitoes suck blood.