单选题 The maturity of IT industry and the integration of IT into the mainstream of economic activity and ______ constraints have forced the authority to rethink its role.
A. budgetary B. documentary
C. commentary D. portray

【正确答案】 A
【答案解析】[解析] 词义辨析
选项A．budgetary 预算的；B．documentary 文件的；C．commentary 注释，解说词； D．portray 描绘；而本文要表达的是“预算限制”使得有关当局不得不新考虑IT业的角色。因此A为答案。