Answer:
The answer is: C) decrease; increase
Explanation:
Currency appreciation occurs when the value of one currency increases in relation to another currency. In this case, country A´s currency will gain value against the currency of countries B and C (C´s currency is pegged to B´s currency).
This means that products from country A will be more expensive than products from countries B and C, which should lower country A´s exports and increase its imports.