The correct answer is letter C.
The difference between Capitalism and Mercantilism is that capitalism is turned to international trade with the adoption of liberalism, and mercantilism is turned to protectionism.
In addition, capitalism also advocates private ownership of the means of production and non-state intervention in the economy, while mercantilism advocated a "partnership" between the upper bourgeoisie and the state, with state intervention to guarantee "good functioning "of the national economy.