thE EriE CAnAl is mEntionED in thE pAssAgE BECAusE ________.
A．it EnDED just A FEw yEArs lAtEr in A trEmEnDous FAilurE
B．it suFFErED From CompEtition From rAilroADs AnD truCks
C．it provED to BE lEss proFitABlE thAn its invEstors ExpECtED
D．its suCCEss lED to thE grEAt AmEriCAn CAnAl Boom in thE 1830s