Assume you have A, B, C, and D available but not their complements. The minimum number of 2-input NAND gates required to implement the equation is ________.

Assume you have A, B, C, and D available but not their complements. Th

1.	Assume you have A, B, C, and D available but not their complements. The minimum number of 2-input NAND gates required to implement the equation is ________.
A.	3
B.	4
C.	5
D.	6
Answer» D. 6