Poonam Chema had an elderly grandfather who required a walker in order to move about. Noticing that he would get tired quickly and that he required a place to sit down, Poonam designed a walker that could be easily collapsed and restructured into a chair with the use of two levers. She has named her prototype stroller/chair the "Supportive Stroller".

(a) Clearly explain which intellectual property right is appropriate to protect Poonam's prototype, (b) explain the scope of the right that she will have if she acquires this intellectual property protection and (c) indicate how long she will get the protection for.