Which Statement About Pollen and Pollination Is False

Which statement about pollen and pollination is false?

A) Evolution of the pollen grain is correlated with the loss of motile sperm in flowering plants.
B) At maturity, the pollen grain consists of two sperm nuclei and a tube nucleus.
C) The pollen tube grows toward the female gametophyte through the style.
D) The pollen grain makes twice the genetic contribution to endosperm cells as it makes to the embryo.
E) Growth of the pollen tube is guided in part by a protein made by synergid cells.