By the third performance of the festival ______ critics had begun to praise the young violinist as the discovery of the season.
Which choice completes the text so that it conforms to the conventions of Standard English?
- A
:
- Bcheck_circle
,
- C
;
- D
(empty)
Explanation
The introductory prepositional phrase "By the third performance of the festival" is set off from the main clause by a comma.