19 A multiplexer is used to accept data from many input sources for transmission over a common shared line as shown in Figure CI MUX 2011 11) Figure B19 When A-1, B-1, which of the inputs is present in the output Y. [0.5) What must be the value for A and B so that Laptop sound card will be selected? [0.5) Construct the truth table, write the logic function and draw the logic diagram of the given [4] multiplexer iii)