When an RC driving point impedance function has zeros at s= -2 and s=-5 then the admissible poles for the function would be?

When an RC driving point impedance function has zeros at s= -2 and s=-

1.	When an RC driving point impedance function has zeros at s= -2 and s=-5 then the admissible poles for the function would be?
A.	s = 0; s = -6
B.	s = 0; s = -3
C.	s = 0; s = -1
D.	s = -3; s = -4
Answer» C. s = 0; s = -1