Answer:
A. Patent
Explanation:
Patent is a legal right to an invention. It is a form of intellectual property that prevents others from copying an invention made by someone for some period of time. Thus, over the period where the patent is valid, only the inventor has the legal right to produce the invention or apply the invented process of developing textiles waterproof.
Copyright is different from patent. Copyright is a legal right to given to the originator of a write-up, music, art work etc. It gives the originator exclusive right to publish, print, or perform artistic document or musical performance. Trademark refers to symbols or logo designs legally registered by an organisation that prevent others from using that symbol. This allows people to recognize companies just by their symbols. Non- disclosure agreement is a contractual agreement between two or many parties that prevents either party from disclosing sensitive/confidential information to outsiders.
Since a process developed to make textile waterproof is an invention, it should be regulated by patent.
