2 questions in picture

QUESTION 10 From 1944 to 1971 as a result of the Bretton Woods Conference, many of the world's currencies were defined in terms of the O a. Pound O b. Dollar O c. Yen O d. Lira QUESTION 11 A change in demand refers to O a. Consumerism O b. None of these O c. A shift in the supply curve O d. Opportunity cost