Becky Has Been Assigned to Help with a Major Change

Multiple Choice

Becky has been assigned to help with a major change to her company's accounts database. During the time of the change, Becky notices that her task will need to be modified to complete the change. Instead of telling her supervisor, she determines that the minor detail must have been overlooked and fixes what she believes is the problem. The minor detail that Becky did not tell her supervisor causes the change to fail.  
What is Becky's mistake called?

A) Scope of change
B) Out of scope modification
C) Change modification
D) Request for comments