Scenario - the Rochester Corporation

Scenario - The Rochester Corporation
The Rochester Corporation is a multinational import-export firm with headquarters in the New York,USA.It currently has thirteen offices located on foreign soil and plans to open seven more by the end of the year.Rochester is quite proud of the fact that it reached over four billion dollars in revenue last year.The officers of the corporation are expecting to net over six billion per year with the projected expansion.
The Rochester Corporation considers it is a veteran when it comes to dealing with foreign governments and nations.The company maintains strict guidelines for employees and will only hire those who have expatriate experience of at least three years.The owners of Rochester attribute the company's continued success to the experience and knowledge of its employees.
-The Rochester Corporation has three products that were created by its employees.These products have received patents from both the United States and twenty foreign nations.All three products are currently exported to all of the company's customers.Which one of the following does not reflect guidelines or rules governing these patents?

A) The inventor has exclusive rights to the product for a certain period of time
B) Patent rights remain enforceable for 5-20 years depending upon the invention and the country involved
C) Patents have an expiration date set some time in the future depending on the invention
D) Modifications to the product by others are allowed after one year and with government consent
E) Patents offer inventors limited legal monopoly rights