Which of the following combinations is NOT possible?
Africa and America each had 1 expert in population studies attending the conference.
AfricaAmericaAustraliaEuropeTotalLabour01113Health22116PS12216RefugeeAllocation13116Total485421
AfricaAmericaAustraliaEuropeTotalLabour01113Health13116PS12216RefugeeAllocation22116Total485421
AfricaAmericaAustraliaEuropeTotalLabour01113Health13116PS21216RefugeeAllocation13116Total485421