单选题 The vast number of new business the city is attracting is good news for the local economy; however, the ______ of vacant office space is something the major has to figure out soon.
A. level B. training
C. shortage D. exaggeration

【正确答案】 C
【答案解析】[解析] 本市吸引来的大量新企业对本地经济来说是个好消息，但办公空间不足是市长急需解决的问题。横线处应选择适当的名词。However是转折连词，因此横线处应填入与vast number含义相反的名词。故正确答案为C。