The correct answer is angiosperms.
The angiosperms, also known as the flowering plants, they are the most varied group of land plants with more than 400 families, and about 13000 known genera.
Similarly to gymnosperms, the angiosperms are seed-bearing plants. However, they are separated from gymnosperms by the features like endosperm within the seeds, flowers, and the generation of fruits, which comprise the seeds.