Which statement is untrue about Dr. Jonas Stalk? Question options: A:He patented the polio vaccine so people could only buy it from him. B: He helped create a flu vaccine during WW2.C: His work helped modern vaccines to be developed. D: He developed a vaccine for polio by 1955 .

answer: which of the following best describes greek tragedy?

a) it was lighthearted and included songs and elaborate costumes.

b) the plays included political statement that mocked leaders and their policies.

c) the lead character suffers because of personal flaw.

d) the gods intervene negatively in the lives of men.

the answer would be d

explanation:

true

explanation: