The lighthouse ______ standing alone on the rocky promontory ______ has guided ships safely past the shoals for over 150 years.
Which choice completes the text so that it conforms to the conventions of Standard English?
- A
— / ,
- Bcheck_circle
, / ,
- C
/
- D
; / ;
Explanation
The participial phrase "standing alone on the rocky promontory" is nonrestrictive (the lighthouse is the only one mentioned) and is enclosed in paired commas.