<prompt> Sulphur containing amino acids metabolism needs-PyridoxineFolic acidVitamin B12All of the above  <response>: Sulphur containing amino acid metabolism requires three vitamins:- 1. Vitamin B6 Pyridoxine, 2. Vitamin B9 Folate 3. Vitamin B12. Folate and vitamin B12 are required for one carbon transfer and Pyridoxine is required in Cystathionine Synthase, which conves Homocysteine to Cystathionine. 