The world's tallest tree ______ a coast redwood named Hyperion ______ stands at over 380 feet in California's Redwood National Park.
Which choice completes the text so that it conforms to the conventions of Standard English?
- A
, —
- B
, ,
- Ccheck_circle
—, —
- D
—,
Explanation
A pair of em-dashes properly sets off a parenthetical appositive for emphasis. Commas would also work but the dashes provide stronger emphasis; mismatched punctuation is ungrammatical.