The inputs to a digital circuit shown in Figure are the external signals A, B and C.

( and  are not available. The +5V power supply (logic 1) and the ground (logic 0) are also available. The output of the circuit is .        

(a) Write down the output function in its canonical SOP and POS forms.

(b) Implement the circuit using only two 2:1 multiplexers shown in Figures, where S is the data-select line,  and  are the input data lines and Y is the output lines. The function table for the multiplexer is given in table.