求解OG16 homeowner aged 40-50吃冰激凌题

einfucs

题干如下
Homeowners aged 40 to 50 are more likely to purchase ice cream and are more likely to purchase it in larger amounts than are members of any other demographic group. The popular belief that teenagers eat more ice cream than adults must, therefore, be false.
The argument is flawed primarily because the author
A fails to distinguish between purchasing and consuming
B does not supply information about homeowners in age groups other than 40 to 50
我可以理解A为什么对，但不理解B为什么不对。因为推出的此题的
P：40-50的homeowners比其他年龄段的人买更多冰激凌
C：成年人比青少年吃更多冰激凌
感觉其中的GAP有两个，一个是40-50的homeowners不能代表所有成年人，一个是买不等于吃。
那么B是不是错在其中的“about homeowners in age groups other than 40 to 50”呢？如果改成“about adults in age groups other than 40 to 50”是不是就对了呢？

einfucs

求助啊啊