Part $1$:

A US investor sinks $$1,000$ in $1-$year Mexican bonds on March $15,2023.$ The bond yield is $5\%$ per year. The USD$-$MXN exchange rates on the day of purchase of the bond and at its maturity were $1$ USD $=19$ MXN and $1$ USD $=17$ MXN$,$ respectively. What was the yield in dollar terms?

Your answer should be in $\%$ terms at one decimal place. For example, if the gains are $4\mathrm{.}38\%,$ your answer should be $4\mathrm{.}4.$

Part $2$:

Which of the following statements best describes the above process $($the US investor trading USD to MXN to invest in Mexican bonds and reconverting the MXN to USD after maturity$)$:

$1.$ The dollar yield was lower than the MXN yield because the MXN appreciated between March $15,2023$ and March $15,2024.$

$2.$ The dollar yield was greater than the MXN yield because the MXN appreciated between March $15,2023$ and March $15,2024.$

$3.$ The dollar yield was greater than the MXN yield because the MXN depreciated between March $15,2023$ and March $15,2024.$

$4.$ The dollar yield was lower than the MXN yield because the MXN depreciated between March $15,2023$ and March $15,2024.$