What is the depletion of the world's marine fish stocks due to overfishing a classic example of? 

A)  failure of fisheries management plans of individual countries 
B)  the tendencies of species to become extinct over time 
C)  the tragedy of the commons 
D)  failure to adapt new technologies to exploiting fish more efficiently

The depletion of the world's marine fish stocks due to overfishing is a classic example of the tragedy of the commons, which occurs when individuals overuse shared resources because they lack incentives to conserve them. In this case, fishermen have an incentive to maximize their catch, even if it means depleting the fish stocks for future generations. Without proper regulation and management, this tragedy will continue to occur.