The correct answer is C. Fibonacci.
Step-by-step explanation
Leonardo de Pisa (1170 -1240) also known as Fibonacci was an Italian mathematician who stood out for having spread in Europe the Indo-Arabic numeral system that replaced the Roman numeral system. During his childhood, he spent some time with his father in the territory of present-day Algeria where he learned the Arabic numeral system. From his youth, she deepened his knowledge of the Indo-Arabic numeral system throughout the Mediterranean. This knowledge would be summarized in his book "Liber abaci" spreading the knowledge of him throughout Europe.