Quiz submission record for quiz5-1-1 at Mon Jul 19 00:38:17 2004: Your Answer for Question 1: af Your Answer for Question 2: as Your Answer for Question 3: The purpose of the Add unit is to compute the branch target as the sum of the incremented PC and the sign-extended, lower 16 bits of the instruction. No, because ALU in the figure serve as different purpose than the adder. Your unique submission ID is quiz5-1-1-cs61c-ad-1090222697-2942.