${?}_{{?}_{{?}_{?}}{?}_i\frac{s}{a}re\text{m}\text{e}\text{a}\text{s}\text{u}\text{r}\text{e}\text{d}as\text{t}\text{h}\text{e}\text{s}\text{u}\text{m}of\text{v}\text{a}\text{l}\text{u}\text{e}\text{a}\text{d}\text{d}\text{e}\text{d}by\text{r}\text{e}\text{s}\text{i}\text{d}\text{e}\text{n}\text{t}\text{f}\text{i}\text{r}\text{m}\text{s}\text{,}\text{h}\text{o}\text{u}\text{s}\text{e}\text{h}\text{o}\text{l}\text{d}\text{s}\text{,}\text{a}\text{n}\text{d}\text{g}\text{o}\text{v}\text{e}\text{r}\text{n}\text{m}\text{e}\text{n}\text{t}\text{o}\text{p}\text{e}\text{r}\text{a}\text{t}\text{i}\text{n}\text{g}inan\text{e}\text{c}\text{o}\text{n}\text{o}\text{m}\text{y}\text{.}}$

Group $of$ answer choices

Gross national product

Gross national income

Gross domestic product

National reserves