Gentic engineering has been sucessfully used for producing ___ (CBSE-2010)

• A. trangenic models for studying new treatments for Certain cardiac diseases.
• B. transgenic Cow - Rosie which produces high fat milk for making ghee.
• C. animals linke bulies for farm work as they have super power.
• D. transgenic mice for testing safety of polio Vaccine before use in humans.