Figure Q1 shows the block diagram of a circuit which has four inputs A, B, C, D and one output Y. It operates according to the following rules: (i) (ii) (iii) (iv) (a) (b) If the inputs A, B, C and D have more Os than 1s, the circuit will generate an odd parity bit for the inputs. If the number of Os and 1s of the inputs are equal, the machine will generate an even parity for the inputs. If there is only one 0, the output is equal to 1. The output of the remaining case(s) is (are) 1. DUBA Y Figure Q1. Block diagram of a 4 inputs to 1 output circuit. Tabulate the truth table of the circuit. By considering the minimum SOP expression of the truth table, design the circuit using minimum number of logic gates. You can use AND, OR and NOT gates only.