Walsh and Montgomery
Landsteiner and Wiener
Karl Landsteiner
E.M. East
Answer is Wrong!
Answer is Right!
The correct answer is (c). Karl Landsteiner discovered the ABO blood groups in 1900 and received the Nobel Prize in Physiology or Medicine in 1930 for his work on blood groups and blood transfusion.
(a) Walsh and Montgomery did not discover the ABO blood groups.
(b) Landsteiner and Wiener discovered the Rh blood group in 1940.
(d) E.M. East was a geneticist who studied inheritance patterns in plants.