What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: For all x_1, if x_1 were rich, then x_1 is not driving a car. For all x_1, if x_1 drinks water, then x_1 is driving a car. For all x_1, x_1 will drink water.
For all x_1, x_1 will drive a car can be inferred via the universal modus ponens rule.