Which of the following statements about bioengineered foods is false?

Bioengineered foods have DNA that has been deliberately altered, so statements A and B are true. In some cases, genetic material from another organism is added, making D true as well. The Green Revolution involved agricultural advances and crop breeding mainly in the mid-20th century; bioengineered foods were developed later using genetic engineering, so C is false.

AI-written and checked against the verified answer.