Consider the circuit below that adds the two 2-bit numbers A1A0 and B1BO. The delay of each gate is written on it. A bubble at the input of a gate means that input is inverted: BO 3ns 00 B1 A1 2ns B1 BO A1 2ns A1 B1 , 2ns A1 B1 2ns 5ns 01 A1 B1 Ins BO A1 B1 3ns A1 0 BO 2ns 3ns 02 TTIT TITT A1 B1 BO AO B1 BO 3ns 2ns c. (7 points) Write a different module for the whole circuit using a single assign statement for each output. You will have a total of 3 assign statements. Add the delay of each output