Which of the Following Is TRUE

Multiple Choice

Which of the following is TRUE?

A) The more substitutes a resource has, the more likely a cartel controlling such a resource will succeed.
B) The more widespread a resource is, the more likely a cartel controlling such a resource will succeed.
C) Oil and diamond cartels tend to be more successful than copper and plumbing cartels.
D) Oil and diamond cartels have never been successful.