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Verbal·Standard English Conventions·Form, Structure, and Sense
hard
New Zealand and Canada have two of the longest constitutions in the world. At 48,438 and 19,565 words, respectively, these __________ according to research by constitutional scholars George Tsebelis and Dominic J. Nardi, correlate with GDPs (gross domestic products) that are lower than those of countries with shorter constitutions.
Which choice completes the text so that it conforms to the conventions of Standard English?
A
constitutions lengths,
B
constitutions’ length,
C
constitution’s length,
D
constitutions’ lengths,