Consider the Two Chemical Reactions

Consider the two chemical reactions.Identify each statement following as
and clarify as needed.
A + B → C
C → A + B
A.The enzyme catalyzing the formation of C must be different from that catalyzing the breakdown of C.
B.The enzyme catalyzing the formation of C must be the same as that catalyzing the breakdown of C.
C.Only one of the reactions could occur in a given cell or system.
D.Both reactions must be occurring in an equilibrium situation.
E.Equilibrium is always achieved in a chemical reaction.
F.Equilibrium can be prevented from occurring by constantly removing the product of either reaction.
G.An equilibrium,once established,cannot be disturbed.