She was once trained for better English pronunciation and ________ she ________ obvious pronunciation mistakes.

A. then; rarely has made  B. ever since; has rarely made  

C. then; has rarely made    D. ever since; rarely has made

She was once trained for better English pronunciation and ________ she ________ obvious pronunciation mistakes.

1. A.
   then; rarely has made
2. B.
   ever since; has rarely made
3. C.
   then; has rarely made
4. D.
   ever since; rarely has made

She was once trained for better English pronunciation and ________ she ________ obvious pronunciation mistakes.