$\backslash$table$[[21!,$Supply Region,Excess Capacity,$],[22,$N$.$ America,$0,],[23,$S$.$ America,$0,],[24,$Europe,$0,],[25,$Asia,$0,],[26,$Africa,$3,],[27,,$N$.$ America S$.$ America,Europe$],[28,$Unmet Demand,$0,],[29,,,],[30,$Objective Func:,tation,$],[31,$Cost $=,$$ $23\mathrm{.}751,]]$

The demand for Europe is being supplied by which locations?

a$.$ Asis and Africa

b$.$ Asia and Europe

c$.$ Europe and South America

d$.$ South America and Asia