Suppose that the autarky price of commodity X is $10 in Nation A, $8 in Nation B, and $6 in Nation C, and that Nation A is too small to affect prices in Nation B or C by trading. If Nation A initially imposes a nondiscriminatory ad valorem tariff of 100 percent on its imports of commodity X from Nations B and C, will Nation A produce commodity X domestically or import it from Nation B or Nation C?