Which one of the following formulae is used to calculate cross relationship under the span of control?

Which one of the following formulae is used to calculate cross relatio

1.	Which one of the following formulae is used to calculate cross relationship under the span of control?
A.	n(n - 1)
B.	n{2n - 1}
C.	n{2n + n - 1}
D.	None of the above
Answer» B. n{2n - 1}