Holdfast, stipe and frond constitutes the plant body in case of
1. Rhodophyceae
2. Chlorophyceae
3. Phaeophyceae
4. All of these
(c)Phaeophyceae In the members of class-Phaeophyceae, the plant body is usually attached to the substratum by a hold fast and hasa stalk called stipe and a leat like photosynthetic organ called frond.
