[求助]TT GWD-8-8

Q8:

From 1980 to 1989, total consumption of fish in the country of Jurania increased by 4.5 percent, and total consumption of poultry products there increased by 9.0 percent.  During the same period, the population of Jurania increased by 6 percent, in part due to immigration to Jurania from other countries in the region.

If the statements above are true, which of the following must also be true on the basis of them?

1. During the 1980’s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.
2. For people who immigrated to Jurania during the 1980’s, fish was less likely to be a major part of their diet than was poultry.
3. In 1989 Juranians consumed twice as much poultry as fish.
4. For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980’s.（E）
5. Per capita consumption of fish in Jurania was lower in 1989 than in 1980.

请问为什么B不可以？

During the same period, the population of Jurania increased by 6 percent, in part due to immigration to Jurania from other countries in the region.

只是说人数增长是由于移民,没说别的.

B:For people who immigrated to Jurania during the 1980’s, fish was less likely to be a major part of their diet than was poultry.

七宗罪上,为什么非要是移民改变了那个比例呢?

可能是当地的鱼被污染了,也可能是鱼吃完了

in face of such limited evidence, it is fallacious to draw any conclusion at all.

Try to read the original condition carefully, pls.

B is still irrelevant. To be Simple, the article didn't mention  the percentage  that

fish occupies in  the whole food source.