Concept:Mosses lack true roots, so special thread-like structures called rhizoids carry out anchorage and water uptake.
Explanation:Mosses have no true roots.
Instead, they possess rhizoids, which are fine, thread-like structures that anchor the plant to its substrate.
Rhizoids absorb water through capillary action.
Water moves up between the threads of the rhizoids rather than passing through them as it does in true roots.
Root hairs belong to true roots, hyphae belong to fungi, and the capsule is the spore-producing part of mosses.
Answer:B. rhizoids