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Verbal·Standard English Conventions·Boundaries
hard
A 2014 study led by        studied the impact of fertilizers containing nitrogen on grassland arthropod populations. Another study, led by Malie Lessard-Therrien in 2018, looked at fertilizers containing nitrogen and two other macronutrients: phosphorus and potassium.
Which choice completes the text so that it conforms to the conventions of Standard English?
A
researcher, Mark A. Lee,
B
researcher Mark A. Lee,
C
researcher Mark A. Lee
D
researcher, Mark A. Lee