Up through the early decades of the 20th century, many countries remained closed to trade, charging high tariffs or imposing strict quotas on imported goods. In 1948, 23 countries joined the General Agreement on Tariffs and Trade (GATT), which sought to set out rules for trade and enhance future negotiations. The reduction in tariffs as a result of GATT probably brought about:
a. an decrease in consumption
b. an increase in consumption
c. no change in consumption
d. a reduction in domestic production