P6 (12 points): answer the following questions about muxes and decoders. a: how many 1-bit 2-to-1 muxes are necessary to create an 8-bit 2-to-1 mux? b: how many 1-bit 2-to-1 muxes are necessary to create a 2-bit 4-to-1 mux? c: how many 1-bit 2-to-1 muxes are necessary to create a 1-bit 8-to-1 mux? d: how many 2-to-4 decoders are necessary to create a 4-to-16 decoder? e: how many 1-to-2 decoders are necessary to create a 2-to-4 decoder? f: how many 3-to-8 decoders are necessary to create a 6-to-64 decoder?