The correct option is B Leaves, stems, roots and seeds
Both gymnosperms and angiosperms are seed-bearing vascular plants. Gymnosperms are the seed bearing plants wherein seeds are naked i.e. not enclosed by ovary or fruit. Angiosperms are seed bearing plants wherein seeds are enclosed within ovary or fruit. Both have a well-differentiated stem, root and leaves. Thus, the correct answer is option B.