单选题 Canadians now increasingly engage in "out-shopping," which is shopping across the national border, where prices are lower. Prices are lower outside of Canada in large part because the goods-and-services tax that pays for Canadian social services is not applied.
Which one of the following is best supported on the basis of the information above?

A、 If the upward trend in out-shopping continues at a significant level and the amounts paid by the government for Canadian social services are maintained, the Canadian goods-and-services tax will be assessed at a higher rate.
B、 If Canada imposes a substantial tariff on the goods bought across the border, a reciprocal tariff on cross-border shopping in the other direction will be imposed, thereby harming Canadian businesses.
C、 The amounts the Canadian government pays out to those who provide social services to Canadians are increasing.
D、 The same brands of goods are available to Canadian shoppers across the border as are available in Canada.
E、 (E) Out-shopping purchases are subject to Canadian taxes when the purchaser crosses the border to bring them into Canada.

【正确答案】 A

【答案解析】[解析] 本题属于简单的数学相关的题目，很易知(A)为正确答案。由于段落并未提到外国人到加拿大买东西，所以(B)不对；(C)中“the same brands of goods”为新概念；段落中也无“out-shopping purchases are subject to Canadian taxes”，因此(E)也不对。