The correct answer is option C
Genetic engineering is the branch of science that deals with manipulation in the genes. The cutting and joining of two different types of DNA segment to get the desired character is also an outcome of genetic engineering.
Here, the gene coding for the poison in scorpion is cut and joined in the DNA of cabbage to produce small amount of toxin. This toxin will kill the caterpillar feeding on the cabbage.
This is an example of genetic engineering.