Pls help ahahauhwuwhddhahahah

Which of the following is an oxidation-reduction reaction? (pictured below)

Write a paragraph at least 5 sentences “why all vaccinations should be mandatory”

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half