|Question 2Verbal

Source Texts

Text
Despite stated claims of global relevance, much major research on income inequality performed in the 2010s suffered from a myopic focus on a few countries in North America and Western Europe, partly due to limited data availability. Researchers would later        this shortcoming after gaining new access to banking records located in nations in Africa, such as Tunisia, and Eastern Europe, such as Poland.
Which choice completes the text with the most logical and precise word or phrase?
sanction
A
postulate
B
ameliorate
C
rationalize
D