The Presence of Seeds and Pollen Set Gymnosperms Apart from Earlier

The presence of seeds and pollen set gymnosperms apart from earlier groups of land plants. Which of the following statements concerning these features is TRUE?

A) Sperm and ovule are transported together in a seed, so that fertilization can occur when the seed lands on a suitable substrate.
B) Pollen grains contain the male gametes of gymnosperms, and seeds contain the female gametes called ovules.
C) Seeds transport unfertilized female gametophytes and male gametes.
D) Seeds transport the female gametophyte and the plant embryo.