Which list contains only plant phyla?
mosses, annelids, conifers, chordates
mosses, ferns, conifers, flowering plants
cnidarians, mollusks, annelids, arthropods, echinoderms, chordates
cnidarians, mollusks, ferns, annelids, arthropods, echinoderms, flowering plants

The option with mosses, ferns, conifers, flowering plants is the group of phyla which contains only plants.  

Explanation:

Mosses, ferns, conifers, and flowering plants are the four basic groups of the plant kingdom.

Mosses of Bryophyta are primitive non-seeded non-vascular plants which lacks true shoot and root structures.  

Ferns of Pteridohyta are vascular plants with a true root and shoot system but without flowers or seeds

Conifers are woody perennial gymnosperms which are cone-bearing vascular and seeded plants.

Flowering plants are angiosperms and fruit bearing and seed producing plants.  

The annelids, chordates, cnidarians, mollusks, arthropods, and echinoderms belong to kingdom animalia.

answer; i believe the correct answer is (a)0