The best title of this passage can be（）

单项选择题When filling the forms, Dr. Ginoux felt uncertain because （）.

A. she didn’t perform enough operations
B. some operations were unsuccessful
C. she didn’t get advice from the selection committee
D. she was doubtful about her previous operations

单项选择题41（）

A. a large sum of         
B. a great deal of 
C. a large number of       
D. a large amount of