A US investor is considering two bonds of similar risk: $(1)$ A US $1-$year bond that pays a $5\%$ interest rate or $(2)$ a UK $1-$year bond that pay an $8\%$ interest rate. The spot exchange rate is $S\frac{\text{\$}}{}=\frac{L90S}{f}.$ What is the expected $1-$year Forward exchange rate $F\frac{\text{\$}}{}?$

$(4$ points$)$

a$.$ $$\frac{1\mathrm{.}80}{}$

b$.$ $$\frac{1\mathrm{.}75}{}$

c$.$ $$\frac{1\mathrm{.}70}{}$

d$.$ $$\frac{1\mathrm{.}60}{}$