The ...80..... frequently used in international trade is the US Dollar.

Analyze the question

The sentence is "The __ frequently used in international trade is the US Dollar." We need the word that best describes a national system of money in general use, of which the US Dollar is one example.

Explain the concept

These four words are often confused:

• Cash: physical money (coins and notes) as opposed to cheques or cards. It describes the form of payment, not a particular country's money.
• Money: a general term for anything used to pay for goods and services. It is too broad and does not name a specific type such as the Dollar, Naira or Pound.
• Currency: the particular system of money a country uses or that is accepted across countries, such as the Naira, Cedi, Euro or US Dollar.
• Notes: paper money only. Dollars also exist as coins and in electronic form, so this is too narrow.

Solution

1. The US Dollar is a specific type of money used by a country, so it is a currency.
2. In international trade we talk about "foreign currency" and "currency exchange". The Dollar is a "widely used currency".
3. "Cash" and "notes" describe physical forms, and "money" is too general.

So the sentence reads: "The currency frequently used in international trade is the US Dollar."

Answer: C. currency

Tip

If the sentence names the Naira, Dollar, Pound or Euro, think currency. If it talks about paying with physical money rather than a card, think cash.