The correct answer is A. Simon.

Herbert Alexander Simon was an American economist, political scientist, sociologist, and psychologist who was awarded the Nobel Memorial Prize in Economic Sciences in 1978. He is best known for his work on bounded rationality, which is the idea that humans are limited in their ability to process information and make decisions. Simon also developed the concept of satisficing, which is the idea that people often choose the first option that meets their minimum requirements, rather than trying to find the best possible option.

Newman and Wairan's definition of decision making is "the process of choosing between two or more alternatives." This definition is too broad, as it does not specify what criteria are used to make the choice.

TG Glover's definition of decision making is "the process of selecting a course of action from among a set of alternatives." This definition is also too broad, as it does not specify what factors are considered when making the choice.

Ricardo's definition of decision making is "the process of choosing between two or more alternatives in order to achieve a desired outcome." This definition is more specific than the others, but it still does not specify what criteria are used to make the choice.

In conclusion, the correct answer is A. Simon.