The correct answer is D. Karnaugh map.
A Karnaugh map (K-map) is a diagrammatic representation of a Boolean function. It is used to simplify Boolean expressions and to design combinational logic circuits.
A K-map is a rectangular array of cells, with each cell representing a minterm of the Boolean function. The minterms are arranged in a Gray code order, which means that only one bit changes between adjacent cells.
To simplify a Boolean function using a K-map, the function is first expressed in its sum-of-products form. The minterms of the function are then written in the K-map, and
the cells that are 1 are circled. The circles are then grouped together, and the corresponding products are combined using Boolean algebra.The Karnaugh map is a powerful tool for simplifying Boolean expressions and designing combinational logic circuits. It is a relatively simple and intuitive method that can be used to solve a wide variety of problems.
The other options are incorrect because they are not methods for simplifying Boolean expressions.
- De Morgan’s theorems are a set of rules in Boolean algebra that can be used to simplify Boolean expressions.
- A standard map is a type of Karnaugh map that is used to represent Boolean functions with four variables.
- A Schottky map is a type of Karnaugh map that is used to represent Boolean functions with five or more variables.
- None of the above is a method for simplifying Boolean expressions.