One of the channels through which commodity price shocks affect conflict is the rapacity' effect and was outlined by Dube and Vargas (2013) in their paper on civil conflict. Which of the following statements best describes this effect? O a. Any shock which raises wages will reduce conflict by decreasing labour supplied to appropriation activity O b. Any shock which raises wages will increase conflict by decreasing labour supplied to appropriation activity O c. Any shock which raises the return to appropriation will increase conflict by increasing labour supplied to the conflict sector O d. None of the above