The three filters (h1a, h1b, h1c) are now displayed simultaneously, using different colors for each. The last filter, h1c, matches our stopband design requirements, but it has a very narrow passband and a very wide transition band. Using the -6 dB point as the boundary between passband and transition band, and the edge of the main lobe as the boundary between the transition band and the stopband, roughly how wide is each band of filter h1c (i.e. passband, transition band and stop band), in units of normalized frequency?