Answer: B). Increasing one quality in a food crop may degrade other qualities.
Step-by-step explanation:
Genetically engineered food crops are those crops whose DNA is manipulated so as to produce desire effect in them. The manipulations are done so as to induce characteristics such as drought and pest resistance, increase in yield and quality of the food products.
Except the above mentioned improvement, some issues are also associated with the genetically engineered food crops. The one is improving one quality, will degrade the other. As, the induced genes may suppress the effect of other expressive genes in the organism.