why DiD rEgionAlism BEComE so populAr in thE u.s. During thE grEAtDEprEssion
A、BECAusE thE pAintings solD vEry wEll.
B、BECAusE it hElpED strEngthEn pEoplE’s FAith in thEir Country.
C．BECAusE pEoplE likED to livE in thE Country At thAt timE.
D．BECAusE it hElpED rECovEr thE EConomy.