Figure $15\mathrm{.}1$ shows the market for the Swiss franc. In the figure, the initial demand for marks and supply of marks are depicted by $D_0$ and $S_0$ respectively.

Figure $15\mathrm{.}1.$ The Market for the Swiss Franc

a$.$ $$0\mathrm{.}40$ per franc.

b$.$ $$0\mathrm{.}60$ per franc.

c$.$ $$0\mathrm{.}50$ per franc.

d$.$ $$0\mathrm{.}70$ per franc.