From thE lEttEr, wE CAn know ________.
A．thE two siDEs CoopErAtED BEForE
B．thE irish shoulD pAy For thE trAnsportAtion FEE in tErms oF thE nEw priCE
C．thEy usE thE BEst ChEmiCAls to improvE thE quAlity
D．thEy hAvE Enough storAgE thAt CAn supply At Any timE