0 votes 0 votes Shankar Kakde asked Jan 9, 2019 Shankar Kakde 247 views answer comment Share Follow See 1 comment See all 1 1 comment reply Kunal Kadian commented Jan 9, 2019 reply Follow Share Ans is B. Here $Q_{An} = D_A = Q_A \oplus Q_B $ and $Q_{Bn} = D_B = \overline{Q_A. X_{in}} $ 0 votes 0 votes Please log in or register to add a comment.