First anti-rabies vaccine was developed by

Answer: Option B

First anti-rabies vaccine was developed by Louis Pasteur.
Louis Pasteur was a French chemist and microbiologist renowned for his discoveries of the principles of vaccination, microbial fermentation, and pasteurization. His works are credited with saving millions of lives through the development of vaccines for rabies and anthrax.
Pasteur produced the first vaccine for rabies by growing the virus in rabbits and then weakening it by drying the affected nerve tissue.