Removal of awns in cereals is done by

Answer: Option D

Removal of awns in cereals is done by Debearder.
The awn, a bristle-like extension from the lemma in the floret, is one of the distinct morphological and physiological traits in grass species. Awns are an evolutionary trait assisting seed dispersal and germination and increasing photosynthesis.
Debearders (deawners) are used to remove appendages from seeds that are difficult to clean with air-screen separators. The debearder consists of a rotating shaft inside a steel cylinder.