________ Represent(s)the First Reactant(s)of This Metabolic Pathway and ________ Represent(s)the

Multiple Choice

________ represent(s) the first reactant(s) of this metabolic pathway and ________ represent(s) the end product(s) of this pathway. A → B → C → D → E

A) A; E
B) B; E
C) A; D
D) A and B; D and E