C and D are good answers but I'm gonna lean with answer D
Inflation foreign investments
There is no constitutional right to sell an Organ.
Even though constitution admit that you had the full right for full freedom to do whatever you want to your body, selling an organ is strictly illegal because it may create a market that could endanger many of human's life if it's left handled by the private sectors who constantly seek ways to cut expenses.
D. The national government lacked the ability to tax
