ACCorDing to thE pAssAgE, sCholArs AnD stuDEnts ArE grEAt trAvElErs BECAusE ______.
A．stAnDArDs ArE highEr At ForEign univErsitiEs
B．thEir govErnmEnts EnCourAgE thEm to trAvEl
C．sAlAriEs AnD ConDitions ArE BEttEr ABroAD
D．thEy ArE EAgEr For nEw knowlEDgE