A flip-flop operation is described as a toggle when the result after a clock is ________.

• A. <img src="/_files/images/digital-electronics/digital-systems/fba5_1022a1.jpeg">
• B. <img src="/_files/images/digital-electronics/digital-systems/fba5_1022b1.jpeg">
• C. <img src="/_files/images/digital-electronics/digital-systems/fba5_1022c1.jpeg">
• D. <img src="/_files/images/digital-electronics/digital-systems/fba5_1022d1.jpeg">
• E. change to opposite states