Many economists have opinion, that globalization

English as a Second Language English Vocabulary, Grammar and Idioms
1

[i]Many economists have opinion, that globalization may be the explanation for the key –— in the world economy such as: Lower wages for workers, and higher profits, in Western economies.

A) abundances B) tendencies C) obsessions D) assemblies E) aggressions[/i]

Why B, why not E?

2

This is an all-round dreadful sentence.

But, to answer your question, it just isn’t natural to talk of “aggressions in the world economy”. Even if one did, lower wages and higher profits would not be examples.