Answer:
The correct answer is a. bryophytes, lycophytes, ferns, whisk ferns, and horsetails.
Explanation:
Plants that produce seeds for their propagation and multiplication are known as seed plants and the plants who can not produce seed for their multiplication and propagation are called seedless plants.
These plants come under the division Pteridophyta. These seedless plants do not bear flowers and seeds. They mainly reproduce through spores. Spores can be produced sexually or asexually and they show alteration of generation between sporophytic and gametophytic phase.
Seedless plants includes bryophytes, lycophytes, ferns, whisk ferns, horsetails, mosses, liverworts, etc. So the correct answer is a.