Correct option is C
Ans.(c)
• Bioreactor — A large-scale production facility for items such as proteins.
• Electrophoresis is a technology that is used to separate DNA fragments based on their size.
• PCR (Polymerase Chain Reaction) — This method is used to multiply nucleic acids.
• ELISA (Enzyme-linked immunosorbent test) is a pathogen detection method based on the antigen-antibody interaction