By circling the correct answers in the following statements, identify a trend between the rate constants and relative energies of reactants and products with the relative amounts of products and reactants at long times (i.e., at equilibrium).
a. When $k_{forward} > k_{backward}$, $\frac{E_p > E_r, E_p < E_r, \text{ or } E_p = E_r}{\text{circle one}}$, and $\frac{p > r, r > p, \text{ or } p = r}{\text{circle one}}$ at equilibrium.
b. When $k_{forward} < k_{backward}$, $\frac{E_p > E_r, E_p < E_r, \text{ or } E_p = E_r}{\text{circle one}}$, and $\frac{p > r, r > p, \text{ or } p = r}{\text{circle one}}$ at equilibrium.
c. When $k_{forward} = k_{backward}$, $\frac{E_p > E_r, E_p < E_r, \text{ or } E_p = E_r}{\text{circle one}}$, and $\frac{p > r, r > p, \text{ or } p = r}{\text{circle one}}$ at equilibrium.