The Nile River ______ flowing more than 4,000 miles from its sources in central Africa to the Mediterranean Sea ______ has shaped human civilization for millennia.
Which choice completes the text so that it conforms to the conventions of Standard English?
- Acheck_circle
, / ,
- B
; / ;
- C
— / ,
- D
/
Explanation
The participial phrase is nonrestrictive (the Nile is uniquely identified) and must be enclosed in matching paired commas.