In the given figure which of the following operations can be performed by suitably setting the control lines K and Co only (Signs + and - denote addition and subtraction respectively)? K AO C co Full Adder Full Adder si So Full Adder c. Full Adder un So Select one: a. A + B, and A + 1, but not A-B b. A + B, and A- B, and A + 1 CA + B, and A- B, but not A + 1 d. A + B, but not A- B, or A + 1