In order to evaluate the yield per acre of three different varieties of corn, 12 one-acre plots of land will be used. One variety of corn will be randomly assigned to 4 of the plots, the second variety to 4 other plots, and the third variety to the 4 remaining plots of land. At the end of the growing season, the yield per acre will be evaluated. Which one of the following is a true statement? (A) The type of land is being used as a blocking factor.
(B) The treatments in this experiment are the plots of land.
(C) The experimental units in this situation are the varieties of corn.
(D) Our randomization process will reduce the variation that exists due to the plots of land.
(E) Replication of corn variety on four plots of land allows us to measure variability across plots of land.