The observation that a bubbled input OR gate is interchangeable with a bubbled output AND gate is referred to as __________________

The commutative law of addition

The associative law of multiplication

The observation that a bubbled input OR gate is interchangeable with

1.	The observation that a bubbled input OR gate is interchangeable with a bubbled output AND gate is referred to as __________________
A.	A Karnaugh map
B.	DeMorgan’s second theorem
C.	The commutative law of addition
D.	The associative law of multiplication
Answer» C. The commutative law of addition