Why Was Karl Marx Critical of the Malthusian Theory

Why was Karl Marx critical of the Malthusian theory?

A) He believed that population growth was a myth
B) He argued that unequal resource distribution was a more significant problem than population growth.
C) He believed that all families should be very large in order to create a revolution.
D) He argued it was disease that was causing hardship and there was little that could change it.