I think it’s D, because “foreign exchange risk” does not say anything about the MNC, and a fixed exchange rate doesn’t cause that much of a problem. I might be terribly wrong.
7. Happier
8. Taller
9. The most beautiful
10. More expensive
11. Biggest
12. Healthier
Answer:
Defend and challenge are pretty much the opposite of each other here. To defend an argument is to persuade others why the argument is sound. To challenge an argument means you are arguing against IT.
Explanation: