Final answer:
According to the Law of Mass Action, an increase in the concentration of reactants A and B, as well as a decrease in the concentration of C, will drive the reaction A + B <-> to the right.
Step-by-step explanation:
The Law of Mass Action predicts that a chemical reaction will occur faster at higher concentrations of reactants A and B. This is because there are more reactant molecules in solution and a greater likelihood that they will collide in an orientation that allows the reaction to occur. Therefore, an increase in the concentration of A and B, as well as a decrease in the concentration of C, will drive the reaction A + B <-> to the right.