Answer:
A. The book he wrote became the foundation for modern geometry.
Step-by-step explanation:
Euclidean geometry is the mathematical operation associated with Alexandrian Greek mathematician Euclid, which man explained in his textbook on geometry: the Components. Euclid's system consists in considering a short collection of intuitively appealing assumptions and concluding many other statements (theorems) from those. Although several of Euclid's decisions had been stated by initial mathematicians, Euclid was the beginning to show how those suggestions could fit into a general deductive and logical method.