More subscribers to Systems who have never ordered merchandise in response to advertisements in the magazine are age thirty-five or over than are under age thirty-five.
Among subscribers to Systems, the proportion who are under age thirty-five was considerably lower last year than it is now.
Most merchandise orders placed in response to advertisements in Systems last year were placed by Systems subscribers over age thirty-five.
Last year, the average dollar amount of merchandise orders placed was less for subscribers under age thirty-five than for those age thirty-five or over.

• Last year many people who placed orders for merchandise in response to advertisements in Systems were not subscribers to the magazine.

Answer : E

1.从来没有因为广告而采购order的人中，大于三十五岁的人要比小于三十五岁的人多。可以堪称无关选项，never一词太极端，文中指的是last year，而且文中的比较都是给予in response to ad，而没有其他的比较，无关词也可以排除。
2.Among subscribers to Systems, the proportion who are under age thirty-five was considerably lower last year than it is now.在subscriber中，小于三十五岁的比例等等比较文中也没有说，排除。

3.Most merchandise orders placed in response to advertisements in Systems last year were placed by Systems
                subscribers over age thirty-five.文中的most指的是people,而不是subscriber，所以也不对
4.Last
year, the average dollar amount of merchandise orders placed was less
for subscribers under age thirty-five than for those age thirty-five or
over.the average dollar amount无关词排除。