The correct answer to the question is option 2: that is genetically modified. GM food refers to food that has been altered or modified through genetic engineering techniques. This involves introducing new DNA or changing the existing genetic material in the crop to enhance its characteristics or improve its resistance to pests, diseases, or environmental conditions. This can be done by adding genes from other organisms or making changes to the existing genes. Genetic modification is different from geographical modification (option 3), which refers to altering the environment to make it more suitable for growing crops. Option 1, that grows under genetic measures, is not a correct description of GM food. Option 4, with greater glucose metabolism, is unrelated to GM food and can be disregarded.