Some varieties of food crops have been genetically modified in an effort to improve upon a certain trait, such as pest resistance or longer shelf life. However, there are also concerns with genetically modified crops. Which of the following is most likely a concern about genetically modified crops?

There may be an increase in global food prices.

There may be an increase in pest populations that adapt to the modified traits in the crops.

There may be a decrease in the range of environmental conditions in which a crop can survive.

There may be a decrease in the amount of time that fruits or vegetables stay fresh in the supermarket.