The USAir Force Pays a Turkish Citizen $30,000 to Work on on a U.S.base

The U.S.Air Force pays a Turkish citizen $30,000 to work on a U.S.base in Turkey.As a result,

A) U.S.government purchases increase by $30,000; U.S.net exports decrease by $30,000; and U.S.GDP and GNP are unaffected.
B) U.S.government purchases increase by $30,000; U.S.GNP increases by $30,000; and U.S.GDP and U.S.net exports are unaffected.
C) U.S.government purchases; and U.S.net exports, GDP, and GNP are unaffected.
D) U.S.government purchases increase by $30,000; U.S.net exports decrease by $30,000; U.S.GNP increases by $30,000; and U.S.GDP is unaffected.