__________ a US state when it ratified the US Constitution on June 21, 1788, was thereby empowered, via its representatives to the US Congress, to vote on whether to admit Alabama as a state on December 14, 1819.
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Verbal·Standard English Conventions·Form, Structure, and Sense
hardWhich choice completes the text so that it conforms to the conventions of Standard English?
A
New Hampshire officially became
B
New Hampshire would officially become
C
New Hampshire, having officially become
D
New Hampshire had officially become