The correct answer is A. production rules.
Production rules are a type of rule-based system that is used to represent knowledge in a computer. They are made up of two parts: a condition and an action. The condition is a statement that must be true in order for the rule to be applied, and the action is what the system will do if the condition is true.
Production rules are often used in expert systems, which are computer programs that can make decisions or recommendations in a particular area of expertise. For example, an expert system for medical diagnosis might use production rules to represent the knowledge of a doctor about how to diagnose diseases.
The other options are incorrect because:
- B. rule interpreters are programs that execute production rules.
- C. meta-rules are rules that control the application of other rules.
- D. control rules are rules that control the flow of execution in a rule-based system.