Final answer:
Mateo's intellectual property rights are protected from the legal registration stage, upon which he can receive royalties for the use of his water cycle diagram design.
Step-by-step explanation:
Mateo's intellectual property rights for the water cycle diagram he is designing will come into effect at the stage where he has legally registered his work. This stage is known as the legal registration stage, which is answer option (d). At this point, provided that Mateo has secured a copyright for his diagram, any textbook publisher who wishes to use the diagram in their textbooks will be required to pay him royalties. This legal recognition and protection will allow Mateo to recover the costs incurred in designing and marketing his work, as it gives him the exclusive right to control the reproduction and distribution of his diagram.