George Beaton,professor Emeritus at the University of Toronto and a World-Renowned

George Beaton,professor emeritus at the University of Toronto and a world-renowned pioneer in the study of human nutrition requirements,advised that

A) mortality rates can be reduced by 23% by supplying young children living in at-risk countries with vitamin A.
B) brain functioning can be improved by 23% by supplying young children living in at-risk countries with vitamin A.
C) the risk of learning problems can be reduced by supplying young children living in at-risk countries with vitamin A.
D) physical growth can be enhanced by supplying young children living in at-risk countries with vitamin A.