3. Given the following 8 bit, signed number: 0xC8 \Hint: Consider the signed range given 4 bits 3.a. (0.5 pts) Show the HEX representation if I signed-extended OxC8 to 16 bits. 3.b. ( 0.5 pts) Show the HEX representation if I zero-extended OxC8 to 16 bits. 3.c. ( 0.5 pts) Given 8 bits, what number would I have to add to result in zero? Remember, it's only 8 bits. 3.d. ( 0.5 pts) Given 8 bits, what is the largest negative number (-10 is larger than -20) I would need to add to OxC8 set the overflow flag