Which Issue Has Not Been Significant in the Creation of Genetically

Multiple Choice

Which issue has not been significant in the creation of genetically modified (GM) organisms?

A) some plants carrying genes from other species representing a possible threat to the environment
B) inability of GM organisms to be modified to prevent them from reproducing once they pass beyond the experimental stage
C) the fact that rogue microbes might transfer dangerous genes into other organisms
D) the fact that the protein products of transplanted genes might lead to allergic reactions