A one$-$year bond currently pays $2\mathrm{.}8\%$ interest. It's expected that it will pay $1\mathrm{.}2\%$ next year. According to the expectations theory, what is the interest rate on two$-$year bond currently?

$1\mathrm{.}1$ percent.

$4\mathrm{.}4$ percent.

$2\mathrm{.}2$ percent.

$2\mathrm{.}0$ percent.