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Are you good with cells and things? if so help!

5.In 2014 a paper in the journal CellTransplantation reported on the case of a Polish manwhose spinalcord hadbeen severed in a stabbing. He had been given a novel treatment cells fromthe olfactory lobeof hisbrain (the area that analyses smells) were grown in culture and then injectedaround the site of theinjury.Thin strips of nerves were attached between the two ends of the spinal cord togive a framework forrecovery.He was given intensive physiotherapy. Over a period of months the patient beganto recover some control of his legs. He also regained some control of hisbladder, bowel, and sexual function. He can now walk with a frame.a) The cellshe was given were not stem cells they were cells that encourage the growth ofnerve cells but the research was supported and funded by groups involved instem cell research. Suggest why stem cells might also be involved in this typeof therapy in the future.b) The sightof a paralysed man walking, with difficulty, and the apparent regeneration ofsome of his spinal cord, caused a lot of excitement in the media. Thescientists involved were very cautious but excited. Other scientists were veryreluctant to see it as major progress. Evaluate this research from the informationgiven here and indicate some of the problems still to be overcome before there isa useful cure for spinal injuries.
A) would be because stem cells have the ability to differentiate into any specialised cell

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