Now design a 16-bit 8-to-1 mux using only 16-bit 2-to-1 muxes (you can use the one implemented in problem 1). data inputs and output should be 16-bit vectors. your 8-to-1 mux should be implemented using structural style and should have a three-bit signal for the select line. in your test bench, you should include enough number of test cases to show the correctness of your design. report: vhdl code, waveforms, and the block diagram of 8-to-1 mux. subject- digitial system designneed the structural code and test bench