The correct answer is C) to protect trade.
It is important that countries protect intellectual property to protect trade.
Protecting intellectual property is a necessity for countries that want trade and investments because the owners of the companies want their marks, names, logos to be protected in the world. They do not want no one to steal ideas, trademarks, formulas or systems that they developed in their headquarters. Companies invest millions of dollars in their formulas and innovations. That is why the demand for other countries to protect their copyrights, trademarks, and patents.