After Fertilization in Flowering Plants, an Embryo in a Seed

After fertilization in flowering plants, an embryo in a seed ____.

A) begins as a gametophyte and ends up as a sporophyte before germination
B) is always a sporophyte
C) is usually a gametophyte but can be a sporophyte
D) begins as a sporophyte and ends up as a gametophyte before germination
E) is always a gametophyte