The energy diagram above is for the reaction A + B -> C. The product has more energy than the reactants and the reaction s is best classified as A)exothermic B)endothermic C)electrostatic D)neutral

The energy diagram given is for endothermic reaction process
This is characterized by the system to require more energy to form products.
In this question, specie A and B are the reactant while C is the product.
What happens in this type of reaction is that for products to be formed, the reaction has to attain activation energy which is used to break bonds and form products and this energy has to be gotten from outside the system in order for the reaction to proceed.