The correct answer is: A. Generalized modus ponens.
Modus ponens is a valid deductive argument form in propositional logic. It states that if P implies Q, and P is true, then Q must also be true. Generalized modus ponens is a more general form of modus ponens that allows for multiple premises. It states that if P1 implies Q1, P2 implies Q2, and so on, and P1, P2, and so on are all true, then Q1, Q2, and so on must also be true.
Inference is the process of drawing a conclusion from premises. In logic, an inference is a valid argument if the conclusion necessarily follows from the premises. Clauses are a way of representing propositions in propositional logic. A clause is a set of propositional variables that are connected by logical connectives.
None of the other options are lifted versions of modus ponens.