Which currency is normally used for conducting global trade between two countries?

The best answer for the question: Which currency is normally used for conducting global trade between two countries, would be: The U.S dollar is the most commonly used currency today for international trade.

Explanation:

Although the use of currency between two trading sides depends entirely on what they agree on, the global market tendency shows that the currency most commonly accepted, and also most used as reference, for pricing of goods and services, is definitely the U.S dollar. This might have to do with the strength of the U.S economy and the strength of its currency, the backing it has. The other currency widely used, but a little less than the dollar, is the Euro. But as said, as of 2015, the dollar remains the strongest currency and the most widely used.

the answer is true!