is my answer for question 19 correct?

Question 19 A central reason for the establishment of the EU was a strong desire on the part of member countries to hold their own on the world's political and economic stage. True False 3 pts Question 20 In a free trade area O Barriers to the trade of goods and services among member nations are removed O A common external trade policy is adopted O A common currency is adopted O A single Parliament determines political and foreign policy Question 21 4 pts Which of the following is true of a common market? O Involves the free flow of products and factors of production between member countries and the adoption of individual external trade policies O Eliminates trade barriers between member countries and adopts a common external trade policy and a common currency O Has no barriers to trade between member countries, includes a common external trade policy and allows factors of production to move freely between members All barriers to the trade of goods and services among member countries are removed and each country maintains its own policy towards nonmember countries