In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements : 1. The Serum Institute of India produced COVID-19 vaccine named Covishield using mRNA platform. 2. Sputnik V vaccine is manufactured using vector based platform. 3. COVAXIN is an inactivated pathogen based vaccine. Which of the statements given above are correct?

1. Statement 1: The Serum Institute of India (SII) produced the COVID-19 vaccine Covishield. Covishield uses a viral vector based platform (specifically, a chimpanzee adenovirus vector), not an mRNA platform. Thus, statement 1 is incorrect. 2. Statement 2: The Sputnik V vaccine is indeed manufactured using a viral vector based platform. It utilizes two different human adenovirus vectors for its two doses. Thus, statement 2 is correct. 3. Statement 3: COVAXIN, developed by Bharat Biotech, is an inactivated pathogen based vaccine. It contains the killed SARS-CoV-2 virus, prompting an immune response without causing disease. Thus, statement 3 is correct. 4. Since statements 2 and 3 are correct, the correct option is (B).