Which of the following is a reason for concern over genetically modified foods mentioned in the text?

The concern over genetically modified foods is highlighted by the issue of regulation. The text points to the fact that genetically modified organisms (GMOs) may not undergo thorough regulatory oversight, which raises apprehensions regarding their safety for human consumption and their impact on the environment. Proper regulation is essential in ensuring that food products meet safety standards and do not pose unintended health risks or ecological consequences. The absence of stringent regulatory measures can lead to potential negative outcomes that consumers and health advocates worry about. This focus on regulation aligns directly with the overarching theme of caution and scrutiny concerning the introduction of GMOs into the food supply.