Which of the following best represents a full-adder?

Find the result of 0111 – 0010 using 2’s complement.

Find the result of 1110 – 1001 using 1’s complement.

Full-adders are used in ripple-carry adders.

Express f(A, B, C, D) = A XOR B + CD around variable B using Shannon’s formula.

Find the result of 1000 – 0010 using 2’s complement.

Overflow occurs in 1100 – 1101 using 2’s complement.

Find the result of 1010 – 1001 using 1’s complement.

How many outputs does a full-adder produce?

Overflow occurs in 0110 – 1111 using 2’s complement.