Identify the Boolean expression that is in standard POS form.

• A. <img src="/_files/images/digital-electronics/digital-fundamentals/cua4_0080a.gif">
• B. <img src="/_files/images/digital-electronics/digital-fundamentals/cua4_0080b.gif">
• C. <img src="/_files/images/digital-electronics/digital-fundamentals/cua4_0080c.gif">
• D. (A + B)(C + D)