Suppose the current exchange rate between the U$.$S$.$ dollar and the Mexican peso is $$0\mathrm{.}10=1$ peso. Furthermore, suppose the price level in Mexico rises $15$ percent while the U$.$S$.$ price level remains constant. According to the purchasing power parity theory, which of the following exchange rates comes closest to being the equilibrium exchange rate?

Group of answer choices

$$0\mathrm{.}087=1$ peso

$$0\mathrm{.}085=1$ peso

$$0\mathrm{.}115=1$ peso

$$0\mathrm{.}13=1$ peso