Marx has given numerous causes which will lead to the overthrow of capitalism. Some of the causes are given below. However one of the causes listed is not

A. Capitalism concentrates large
B. Capitalism reduces the purchasing capacity of workers by paying them lowest wages
C. Capitalism concentrates the capital in the hands of fewer persons and pushes the smaller capitalists in the rank of working classes
D. Capitalism frees the workers from economic worries and thus makes it possible for them to wage a strong struggle against capitalism