What is the z-transform of the signal x(n) = - nu(-n-1)?

1.	What is the z-transform of the signal x(n) = - ⁿu(-n-1)?
A.	( frac{1}{1- alpha z^{-1}} );ROC \|z\|<\| \|
B.	(- frac{1}{1+ alpha z^{-1}} );ROC \|z\|<\| \|
C.	(- frac{1}{1- alpha z^{-1}} );ROC \|z\|>\| \|
D.	(- frac{1}{1- alpha z^{-1}} );ROC \|z\|<\| \|
Answer» E.

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