GMAT Critical Reasoning (CR) | Re: In the U.S between 1880 amd 1890, the number of farmers

In the U.S between 1880 amd 1890, the number of farmers continued to increase, but at a rate lower than that of the general population.

Which of the following statements directly contradicts the information presented above ?

(A) The number of farmers in the general population increased slightly in the thirty years between 1850 and 1880.

(B) The rate of growth of the United States Labor force and the rate of growth of the general population rose simultaneously in the thirty years between 1850