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Verbal·Standard English Conventions·Boundaries, Form, Structure, and Sense
hard
Integrating insights from economics and psychology, researchers in the field of behavioral economics explore a variety of topics. Olga Shurchkov of Wellesley College studies worker [blank] other researchers investigate areas such as market behavior and consumer behavior.
Which choice completes the text so that it conforms to the conventions of Standard English?
A
productivity for instance;
B
productivity, for instance;
C
productivity; for instance,
D
productivity, for instance,