Paragraph 10 Nigeria’s over 200 million-strong population comprises a middle class that ranks among the world’s most migrated. There are Nigerian populations in many parts of the world, owing to the country’s infrastructural challenges and high level of unemployment. Artists are not exempt from this exodus, although success can give them the means to return home.
The logical connector/discourse marker "owing to" in paragraph 10 (quoted above) is used to indicate _________ .
A. comparison
B. contrast
C. addition of information
D. order
E. cause and effect