If a nation's income exceeds its spending, then

        a.  savingswill exceed domestic investment

        b.  thenation must run a current‑account surplus

        c.  thenation must run a capital‑account deficit

        d.  allof the above

In order to reduce its current‑accountdeficit, the United States must do which of the following?

        a.  reducethe federal budget deficit

        b.  raisenational product relative to national spending

        c.  increasesavings relative to domestic investment

        d.  allof the above

请问这两条选什么？谢谢各位了！