The shape factor of an anti-aliasing filter is given by the ratio of the frequency at ___ dB attenuation point to the frequency at ___ dB point.

The shape factor of an anti-aliasing filter is given by the ratio of

1.	The shape factor of an anti-aliasing filter is given by the ratio of the frequency at ___ dB attenuation point to the frequency at ___ dB point.
A.	80, 3
B.	3, 80
C.	-80, -3
D.	-3, -80
Answer» D. -3, -80