Definition: You are given a question on high school chemistry. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: The Arrhenius equation may be used to determine
(A)the activation energy of a reaction (B)the rate constant at various temperatures (C)the shelf life of a consumer product or drug (D)all of the above

D