QUESTION 6 Choose the correct answer from the options provided: Relative purchasing power parity states that exchange rates vary in response to: A. differences in interest rates between countries. B. changes in the trade barriers between countries. C. changes in the tax rates imposed by a country. D. differences in the inflation rates between countries. E. arbitrage trades involving the exchanged currencies. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac)