Strawberry aldehyde (C12H14O3) is a chemical that helps give strawberries their smell. Many people enjoy this smell, so strawberry aldehyde is often added to perfumes and soaps. Factories can make this fragrant chemical by combining acetophenone (C8H8O) with ethyl chloroacetate (C4H7ClO2). This combination forms strawberry aldehyde and hydrochloric acid (HCl). Making fragrant chemicals like strawberry aldehyde in a factory is often less expensive than extracting the same chemicals from plants. In the chemical reaction described in the passage, which of the following are reactants? Select all that apply.