In the hypothetical reaction below, substance a is consumed at a rate of 2.0 mol/l·s. if this reaction is at dynamic equilibrium, at what rate will substance b be consumed?

The rate of substance B being consumed should be equal to that of the substance A. Dynamic equilibrium is the balance in a process that is continuing. It is achieved in a reaction when the forward rate of reaction and the backward rate of reaction is at the same value or equal.

i think it's c. i'm not sure but i think so.