Passage 1: Genetically Engineered Crops by Tony Esplanade
According to passage 1, what concern regarding genetically foods?
A. Plants with altered genes were first planted in 1996 in the first large-scale Ge crops
B. In Mexico, the teosinte grass produced grains of starch that eventually created the corn plant.
C. Farmers can Use GE crops that resist viruses that may cause disease.
D. There are possible risks to the environment and to people's health.