Which of the Following Examples Specifies the Cause of the Tragedy

Multiple Choice

Which of the following examples specifies the cause of the tragedy of the common?

A) People like to eat chicken so demand for chicken has significantly increased.
B) The supply of chicken is plentiful, causing the profit margin of selling chicken to decrease.
C) Tuna in the ocean are not privately owned so fishermen have an incentive to overfish.
D) The supply of tuna is rare, creating high profit margins and incentives for fishermen to underfish tuna.