Which dependency should you delete?

You are editing a schedule in Microsoft Office Project Standard 2007, scheduling from the start of the project. You notice that Task X is starting later than you expected. Task W is 100 percent complete. You need Task X to start on Tuesday. Which dependency should you delete?

A.
The dependency between Task A and the summary task.

B.
The dependency between Task W and Task X.

C.
The dependency between Task X and Task Y.

D.
The dependency between Task Z and Task X.