The situation that would lead to a faster reaction would be example B because of a higher surface area. The correct option would be A.
Looking at the image, the surface area of the reactants in B is higher than that of A. When it comes to the surface area of reactants in a reaction, the higher the surface area, the higher the rate of reaction would be. This is why powdered solutes usually dissolve faster in water than their solid counterparts.
Hence, the reaction in B would be faster due to the higher surface area of the reactants than A.
More on surface area and reactions can be found here: https://brainly.com/question/2516619
