Answer:
Option C, a fixed exchange-rate system, is the right answer.
Explanation:
Another term for the Fixed Exchange Rate is the pegged exchange rate. Following this exchange rate management, the currency of a nation is tied to the value of another individual currency such as the dollar or a basket of money, for instance, euro or to gold.  The main aim of this rating system is to keep the value of a currency within a narrow band.
 
        
             
        
        
        
Social development is defined as prioritizing human needs in the growth and progression of society. Social development  also governs the norms and conventions that govern human interaction. The focus is on improving the lives of regular citizens, especially the poor, to make society a better place for everyone.