In the Context of "Knowledge" Economy of the Twenty-First Century,which

In the context of "knowledge" economy of the twenty-first century,which of the following statements is true about intellectual property?

A) Intellectual property has become an increasingly important source of economic value for businesses.
B) Protecting intellectual property has become increasingly easy in the twenty-first century.
C) Intellectual property laws limit the creativity and the ability of people to search for novel ways of doing things.
D) Firms always choose to stay out of countries where intellectual property laws are strict.
E) Companies in a country are more likely to commit themselves to extensive basic research if the country prohibits the use of patents.