The standard SOP form of the expression is ________.

• A. <img src="/_files/images/digital-electronics/digital-fundamentals/cua4_0060a.gif">
• B. <img src="/_files/images/digital-electronics/digital-fundamentals/cua4_0060b.gif">
• C. <img src="/_files/images/digital-electronics/digital-fundamentals/cua4_0060c.gif">
• D. <img src="/_files/images/digital-electronics/digital-fundamentals/cua4_0060d.gif">