The correct answer is C. 63.76 rupees
Step-by-step explanation:
In the economy, the exchange rate is the one that defines the equivalence between two currencies of different countries or economical zones. This means by using the exchange rate you can determine how many rupees you need to buy one dollar and vice versa. According to this, if the dollar to rupee exchange is 63.76 this means 1 dollar = 63.76 rupees, and therefore you will need 63.76 rupees to get one dollar. On the other hand, if you have 1 rupee this is equivalent to 0.015 dollars as this is the exchange rate rupee to dollars. Thus, to buy one dollar Ria will need to have 63.76 rupees because this is the exchange rate for the two currencies.