which is a thesis statement? in order to confirm the effectiveness of the polio vaccine that he had…

which is a thesis statement? in order to confirm the effectiveness of the polio vaccine that he had invented, jonas salk administered it to a number of people, including his wife, their children, and even himself. although jonas salk invented the polio vaccine, it is albert sabin, creator of a safer and cheaper version of the vaccine, who deserves the credit for curing polio in the u.s.
Answer
Brief Explanations:
A thesis statement presents an argument or claim. The first statement is a factual description. The second statement presents an opinion - that Albert Sabin deserves credit for curing polio in the U.S. over Jonas Salk, which is an argumentative claim.
Answer:
Although Jonas Salk invented the polio vaccine, it is Albert Sabin, creator of a safer and cheaper version of the vaccine, who deserves the credit for curing polio in the U.S.