Mechanical Engineering - IC Engines and Nuclear Power Plants - Discussion

I would say that this answer is not completely correct as even though turbochargers use the same concept but there we increase the fuel supplied in accordance with air so as to get higher output from same engine size, but here oxygen remains same.

I would suppose B to be a better match as less heat addition would be required to increase temperature of intake gas.

Increase in pressure leads to rise in temperature, which proves to be useful for the compression ignition of fuel. Also a large volume of air is intake, which increase the oxygen availability.

Usually turbocharger is used to increase the pressure of intake air by utilising the waste exhaust gas.