Correct Answer:
B. Insulin
The correct answer is Insulin because Sir Frederick Banting revolutionized modern medicine by successfully isolating this hormone to manage diabetes.
- Insulin: This is the correct choice. In 1921, Canadian scientist Sir Frederick Banting, alongside Charles Best, isolated insulin from pancreatic tissues at the University of Toronto. This breakthrough turned a previously fatal metabolic condition (Type 1 Diabetes) into a manageable chronic condition, earning Banting the Nobel Prize in Physiology or Medicine.
- Incorrect Options:
- Covid Vaccine / Anti-Rabies Vaccine: These are incorrect. Insulin is a pancreatic hormone treatment rather than an immunological vaccine. Louis Pasteur famously developed the anti-rabies vaccine, while COVID-19 vaccines were developed by modern global consortiums nearly a century later.