_____ visitors to the UK were asked by newspaper reporters what their impressions of the British people were.

A．The number ofB．A number ofC．Numbers ofD．Any numbers of

_________ visitors to the UK were asked by newspaper reporters what their impressions of the British people were.
 A. The number of  B. A number of C. Numbers of   D. Any numbers of

_____ visitors to the UK were asked by newspaper reporters what their impressions of the British people were.

1. A.
   The number of
2. B.
   A number of
3. C.
   Numbers of
4. D.
   Any numbers of