The correct option is B Gene therapy
Genetic modification
Genetic modification refers to the changes incorporated in an organism's DNA or RNA to modify them as desired. It includes the process of transferring DNA from one organism to another for developing a particular characteristic in the host.
Genetic correction
Genetic correction refers to the modification in genetic material such as DNA or RNA by addition, deletion or substitution of nitrogenous bases to form a functional gene.
Gene therapy
Gene therapy is a method of replacement of a defective gene with the correct gene.
Cells in an embryo form the whole organism. Thus, if a normal gene is introduced at an early embryonic stage using retroviral vectors, this gene performs normal functions and compensates for the defective gene.
Bioremediation
Bioremediation is the branch of biotechnology that aims to reduce the pollution and contamination of the environment using biological entities and technology.
It is carried out by microorganisms (example, Pseudomonas putida for clearing oil spills) and plants (phytoremediation to clear heavy metals).
Final answer
(C) Gene therapy