It shows the increase in total cost coming from the production of one more product unit. Since fixed costs remain constant regardless of any increase in output, marginal cost is mainly affected by changes in variable costs. ... Marginal costs vary with the volume of output being produced.
The disguise used is the propaganda. This type of disguise
is usually used in fooling the crowd or audience because it is a way of having
to show or make them think a sort of information in which that had already manipulated
them rather than thinking the real meaning behind it.