Q3: Answer the following questions for the circuit below. F(A, B, C) is built out of 4 1-bit full adders and a mystery gate (MG). The final output that we are interested in are the PINS OO, 01 and 02. A B B CO Cout FA Cout FA C1 Sum Sum S1 SO 02 C2 cou FA Cout FA Sum 01 Sum 00 MG 04 (a) Fill out the truth table for adder outputs 00, 01, 02 for the combination of Inputs A,B,C. A B C so cos1 C1 C2 00 01 02 04 000 001 0 0 0 1 0 1 0 1 1 1 1 0 1 1 1 1 o 0 1 1 1 1 o 0 0 1 1 0 (b) From the truth table of (a), determine what the mystery gate is (marked MG in the diagram) which gives output 04 with 00 and 01 as inputs