A wEEk AFtEr hE hAD writtEn to his BrothEr, jACkson BEgAn______.
A．tElEphoning thE BAnk
B．visiting thE BAnk
C．shouting At thE ClErks oF thE BAnk
D．ExplAining his proBlEm to thE ClErks oF thE BAnk