|Question 4Verbal

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Text
Maryam Hosseini and her team used aerial images of well-mapped areas of Boston to train a computer program to identify sidewalks. When it was tested on images of Brooklyn, it _______ identified sidewalks in the vast majority of cases and even whether sidewalks were concrete or brick. Hosseini believes the program will improve on this already-strong performance as it gets used more.
Which choice completes the text with the most logical and precise word or phrase?
clumsily
A
reliably
B
rarely
C
slowly
D