These plants lack flowers and seeds. Which of the following is described by this statement? Angiosperms Ferns and horsetails Gymnosperms

Angiosperms are literally known as "flowering plants" and include all the flowering plants. Gymnosperms are seed-producing plants, such as trees that don't have flowers. So that leaves you with ferns and horsetails. Ferns have spores on them that they use to reproduce with, and they do not have flowers.