Which of the following is NOT a valid conclusion from the information shown in the graphs? 

(A) From 1950 to 1960, the number of farms decreased by approximately 2,000,000.

(B) From 1940 to 1990, the number of farms decreased.

(C) From 1940 to 1990, the average size of farms increased each decade.

(D) In 1980, there were about 2,500,000 farms.

(E) From 1950 to 1960, the average size of farms increased by approximately 100%.