Which is the correct logic function for this PAL diagram?

• A. <img src="/_files/images/digital-electronics/digital-fundamentals/mca4_00250a.gif">
• B. <img src="/_files/images/digital-electronics/digital-fundamentals/mca4_00250b.gif">
• C. <img src="/_files/images/digital-electronics/digital-fundamentals/mca4_00250c.gif">
• D. <img src="/_files/images/digital-electronics/digital-fundamentals/mca4_00250d.gif">