Match the following: List I List II A. Serial Binary adder 1. (2n - 1)tpd B. Ripple carry adder 2. (n - 1)tpd C. Carry look ahead binary adder 3. Operation time independent of size 4. 6tpd for 4 bit carry look ahead adder

• A-2, B-1, C-3
• A-2, B-1, C-4
• A-1, B-2, C-4
• A-1, B-2, C-3