Hello everyone, this problem is bothering me! The problem states: Note: 'x means x is complemented, or a bar is over it. One of DeMorgan's theorems states that 'x+'y = 'x'y; Sipmly stated, this means that logically there is no difference between: (a) a NOR gate and an AND gate with inverted inputs. b. a NAND gate and an OR gate with inveted inputs. c. an AND gate and a nor gate with inverted iputs. d. a nor gate and a NAND gate with inverted inputs. I said, d, which was wrong.