At a meeting of the 7 Joint Chiefs of Staff, the Chief of Naval Operations does not want to sit next to the Chief of the National Guard Bureau. How many ways can the 7 Chiefs of Staff be seated around a circular table?
A. 120
B. 480
C. 960
D. 2520
E. 5040
A. 120
B. 480
C. 960
D. 2520
E. 5040