The h1n1 and h3n2 viruses both cause the flu, an infectious disease characterized by respiratory symptoms, fever, and body aches. each year, a flu vaccine that contains h1n1 and h3n2 antigens is developed. an individual who receives the vaccine makes antibodies directed against these antigens. the flu vaccine is typically about 60% effective against h1n1 flu viruses, but only 30% effective against h3n2 viruses. what is the most likely reason why the flu vaccine is less effective against the h3n2 flu viruses than the h1n1 flu viruses?

explanation:

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in his book, the riddle of the rosetta stone, james giblin talks about how there was a young british polymath and physician named thomas young who made a lot of advances on the deciphering of the rosetta stone. he says that even though young made a lot of mistakes because he was working under false assumptions, he also made huge contributions like deciphering three out of the seven symbols (more than anyone else before him). young published his findings and continued his good work but he wasn't able to progress much further due to some unfavorable situations, he still laid the basis for many other scholars and of course for the man who has been generally known to have deciphered it, jean-françois champollion

letter a is the answer

(1)representation based on state population (2)all states have equal representation apex