Seedless plants include

a. bryophytes, lycophytes, ferns, whisk ferns, and horsetails.
b. only lycophytes and pterophytes.
c. only nonvascular plants.
d. bryophytes and gymnosperms.
e. mosses and angiosperms.

Bryophytes, lycophytes, ferns, whisk ferns, and horsetails. (Ans. A)

Explanation:

Seedless vascular plants: They are defined as the plants which contains developed specialized tissues known as vascular structure for transportation of nutrients and water. They are known as higher plants because they include from flowering plants to conifer trees (growing seeds) to fern (do not grow seeds).

Seedless vascular plants are divided into four plant divisions:

1) Psilophyta

2) Lycophyta

3) Sphenophyta

4) Pterophyta

Seedless vascular plants includes horsetail and clubmosses, these plants are not producing flowers or seeds. Spores of these plants are very lightweight with the help of this they are disappearing quickly in the wind.